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Why The Discrepancies In National Democratic Polls?
Why The Discrepancies In National Democratic Polls?
Published: 2016/02/26
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Democratic Statewide Guessing Game
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Michigan Primary Polls 2016: Democrat And Republican Results In Frontrunners’ Courts.
Michigan Primary Polls 2016: Democrat And Republican Results In Frontrunners’ Courts.
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Channel: Donald J. Trump
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Nationwide opinion polling for the United States presidential election, 2016
Published: 2015/12/13
Channel: Audiopedia
2016 Iowa caucus election special
2016 Iowa caucus election special
Published: 2016/02/02
Channel: PBS NewsHour
Primary Polling In Oregon And Kentucky
Primary Polling In Oregon And Kentucky
Published: 2016/05/18
Channel: USA Radio
Election Review & Polling for the Presidential Race
Election Review & Polling for the Presidential Race
Published: 2016/11/10
Channel: Arizona PBS
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Trump win, presidential election, Louisiana US Senate Race: Pinsonat recaps
Trump win, presidential election, Louisiana US Senate Race: Pinsonat recaps
Published: 2016/11/10
Channel: Stephen Sabludowsky
First Vote in a Polarized Age: Lafayette College Election Night Coverage 2016
First Vote in a Polarized Age: Lafayette College Election Night Coverage 2016
Published: 2016/11/10
Channel: PBS39
Trump, Clinton Still Way Ahead, Weekly Tracking Poll Shows
Trump, Clinton Still Way Ahead, Weekly Tracking Poll Shows
Published: 2016/01/19
Channel: Breaking News
Decision 2016 election special
Decision 2016 election special
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FOCUS Season 4 Episode 6 Election 2016
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POTUS 2016: GOP After Wisconsin And Too Big To Fail
POTUS 2016: GOP After Wisconsin And Too Big To Fail
Published: 2016/04/07
Channel: cunytv75
GOP - Skewing the Polls
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Who Will Win Nevada, And Why It REALLY Matters
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Clinton Leads Trump By 7 Points In Michigan
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Published: 2016/09/30
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Channel: UC Davis Institute for Social Sciences
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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This map shows which candidate is leading in the most recent opinion polling for each state.
Key:
  Hillary Clinton
20 states
  Bernie Sanders
3 states
  Shared states (statistically tied)
20 states
  No polling data in the three months preceding the state's primary
7 states, 1 district/territory

Note: This map reflects the latest opinion polling results, NOT the final actual result of the primaries/caucuses themselves. A map of the primaries' results is located at File:Democratic Party presidential primaries results, 2016.svg.

This article contains opinion polling by U.S. state for the 2016 Democratic Party presidential primaries. For currency and accuracy, please note the specific dates for each polling as listed below. For the significance of the earliest state votes, the Iowa caucuses and the New Hampshire primary, see United States presidential primary – Iowa and New Hampshire. To know when any given state votes, see the timeline of primaries and caucuses.

Note: A statistical tie occurs when two data points from within a set are within twice the margin of error of each other. When adding polls remember to double the margin of error provided to see the true result.

Statewide polling[edit]

Alabama[edit]

Delegate count: 53 Pledged, 7 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
77.8%
Bernie Sanders
19.2%
Other
3.0%
Monmouth[1]

Margin of error: ± 5.8%
Sample size: 300

February 25–28,
2016
Hillary Clinton
71%
Bernie Sanders
23%
Others / Undecided
6%
Public Policy Polling[2]

Margin of error: ± 4.4
Sample size: 500

February 14–16,
2016
Hillary Clinton
59%
Bernie Sanders
31%
News-5/Strategy Research[3]

Margin of error: ± 2 percent
Sample size: 3,500

August 11, 2015 Hillary Clinton
78%
Bernie Sanders 10%

Alaska[edit]

Delegate count: 16 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 26, 2016
Poll source Date 1st 2nd Other
Caucus results March 29, 2016 Bernie Sanders
79.6%
Hillary Clinton
20.2%
Other
0.2%
Alaska Dispatch News/Ivan Moore Research[4]

Margin of error: ± ~3.8%
Sample size: 651

Published January 23, 2016[4] Bernie Sanders
48%
Hillary Clinton
34%
Martin O'Malley 6%
Undecided 14%

Arizona[edit]

Delegate count: 75 Pledged, 10 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 22, 2016
Poll source Date 1st 2nd Other
Official Primary results March 22, 2016 Hillary Clinton
56.3%
Bernie Sanders
41.4%
Others
2.3%
Merrill Poll[5]

Margin of error: ± 5.4%
Sample size: 300

March 7-11, 2016 Hillary Clinton
50%
Bernie Sanders
24%
Others / Undecided
26%
MBQF Consulting and Marson Media[6]

Margin of error: ± 3.6%
Sample size: 739

Published February 29, 2016 Hillary Clinton
56%
Bernie Sanders
22%
Others / Undecided
22%
Behavior Research Center[7]

Margin of error: ± 7.3%
Sample size: 186

October 24 – November 5, 2015 Hillary Clinton
47%
Bernie Sanders
19%
Martin O'Malley 2%
Uncommitted 32%
One America News[8]

Margin of error: ± 4.7%
Sample size: 427

Published August 17, 2015 Hillary Clinton
56%
Bernie Sanders
34%
Joe Biden 6%
Lincoln Chafee 2%
Jim Webb 1%
Martin O'Malley 1%
Public Policy Polling [9]

Margin of error: ± 6%
Sample size: 268

May 1–3, 2015 Hillary Clinton
58%
Bernie Sanders
16%
Lincoln Chafee 5%
Jim Webb 5%
Martin O'Malley 4%
Not sure 12%

Arkansas[edit]

Delegate count: 32 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
66.1%
Bernie Sanders
30.0%
Others
4.0%
Public Policy Polling[10]

Margin of error: ± 4.3
Sample size: 525

February 14–16, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Talk Business/Hendrix[11]

Margin of error: ± 3.3% Sample size: 451

February 4, 2016 Hillary Clinton
57%
Bernie Sanders
25%
Don't Know 18%
Suffolk University[12]

Margin of error: ± ?
Sample size: 209

September 20–23, 2014 Hillary Clinton
71%
Joe Biden
8%
Andrew Cuomo 5%
Elizabeth Warren 3%
Martin O’Malley 2%
Undecided/Refused 10%
Polling Company/WomenTrend[13]

Margin of error: ± ?
Sample size: ?

August 6–7, 2013 Hillary Clinton
59%
Joe Biden
14%
Others/Undecided 27%

California[edit]

Delegate count: 475 Pledged, 71 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 7, 2016
Poll source Date 1st 2nd Other

California Secretary of State Primary results

June 7, 2016 Hillary Clinton
53.1%
Bernie Sanders
46.0%
Others
0.9%
CBS News/YouGov[14]

Margin of error: ±5.0%
Sample size: 674

May 31-June 3, 2016 Hillary Clinton
49%
Bernie Sanders
47%
Others / Undecided 4%
American Research Group[15]

Margin of error: ± 5%
Sample size: 400

May 31 –
June 2, 2016
Hillary Clinton
48%
Bernie Sanders
47%
Others / Undecided
5%
NBC/WSJ/Marist[16]

Margin of error: ±4.2%
Sample size: 557

May 29-31, 2016 Hillary Clinton
49%
Bernie Sanders
47%
Others / Undecided 4%
Field[17]

Margin of error: ±4.1%
Sample size: 571

May 26-31, 2016 Hillary Clinton
45%
Bernie Sanders
43%
Others / Undecided 12%
USC Dornsife/Los Angeles Times[18]

Margin of error: ± 2.9%
Sample size: 1,500

May 19-31, 2016 Hillary Clinton
49%
Bernie Sanders
39%
Others / Undecided
13%
SurveyUSA[19]

Margin of error: ±%
Sample size: 803

May 19-22, 2016 Hillary Clinton
57%
Bernie Sanders
39%
Undecided 4%
PPIC[20]

Margin of error: ±5.7%
Sample size: 552

May 13-22, 2016 Hillary Clinton
46%
Bernie Sanders
44%
Undecided 10%
Hoover Institution State Poll[21]

Margin of error: ±3.47%
Sample size: 1,700

May 4-16, 2016 Hillary Clinton
51%
Bernie Sanders
38%
Others / Undecided
11%
Sextant (D)/Capitol Weekly[22]

Margin of error: ±2.3%
Sample size: 1,617

April 28-May 1, 2016 Hillary Clinton
49%
Bernie Sanders
39%
Others / Undecided
12%
SurveyUSA/KABC/SCNG[23]

Margin of error: ± %
Sample size: 826

April 27-30, 2016 Hillary Clinton
57%
Bernie Sanders
38%
Others / Undecided
6%
FOX News[24]

Margin of error: ± 4%
Sample size: 623

April 18-21, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
CBS News/YouGov[25]

Margin of error: ± 4.5%
Sample size: 1,124

April 13-15, 2016 Hillary Clinton
52%
Bernie Sanders
40%
Others / Undecided
8%
Gravis Marketing[26]

Margin of error: ± 3.4%
Sample size: 846

April 7-10, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
Field[27]

Margin of error: ± 4.0%
Sample size: 584

March 24 - April 4, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
SurveyUSA[28]

Margin of error: ± 3.6%
Sample size: 767

March 30 - April 3, 2016 Hillary Clinton
53%
Bernie Sanders
39%
Others / Undecided
8%
USC Dornsife/Los Angeles Times[29]

Margin of error: ± 3.7%
Sample size: 832

March 16-23, 2016 Hillary Clinton
47%
Bernie Sanders
36%
Others / Undecided
17%
PPIC[30]

Margin of error: ± 6.2%
Sample size: 529

March 6-15, 2016 Hillary Clinton
48%
Bernie Sanders
41%
Others / Undecided
11%
Field Poll[31]

Margin of error: ± 5.6%
Sample Size: 329

January 6, 2016 Hillary Clinton
46%
Bernie Sanders
35%
Martin O'Malley 1%
Undecided 18%

Colorado[edit]

Delegate count: 66 Pledged, 13 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 1, 2016
Poll source Date 1st 2nd Other
Caucus results March 1, 2016 Bernie Sanders
59.44%
Hillary Clinton
39.85%
Other
0.71%
Washington Free Beacon/TPC Research[37]

Margin of error: ± 3%
Sample size: 1144

February 16–17, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Undecided 9%
Quinnipiac University[38]

Margin of error: ± 4.9%
Sample size: 404

November 11–15, 2015 Hillary Clinton
55%
Bernie Sanders
27%
Martin O'Malley 2%
Undecided 15%
Suffolk University[39]

Margin of error: ± ?
Sample size: 159

September 13–16, 2014 Hillary Clinton
59%
Elizabeth Warren
21%
Joe Biden 8%
Andrew Cuomo 4%
Martin O’Malley 0%
Undecided 6%
Other 2%
Refused 1%

Connecticut[edit]

Delegate count: 55 Pledged, 15 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
April 26, 2016
Poll source Date 1st 2nd Other
Official Primary Results April 26, 2016 Hillary Clinton
51.8%
Bernie Sanders
46.4%
Others / Uncommitted
1.8%
Public Policy Polling[40]

Margin of error: ± 3.7%
Sample size: 709

April 22–24, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
Quinnipiac[41]

Margin of error: ± 3.0%
Sample size: 1,037

April 12–18, 2016 Hillary Clinton
51%
Bernie Sanders
42%
Others / Undecided
8%
Emerson College[42]

Margin of error: ± 5.2%
Sample size: 356

April 10–11, 2016 Hillary Clinton
49%
Bernie Sanders
43%
Others / Undecided
3%
Emerson College Polling Society[43]

Margin of error: ± 6%
Sample size: 251 LV

November 17, 2015 Hillary Clinton
49.6%
Bernie Sanders
30.7%
Martin O’Malley 9.1%
Other 3.2%
Undecided 6.6%
Quinnipiac University[44]

Margin of error: ± 4%
Sample size: 610

October 7–11, 2015 Hillary Clinton
35%
Bernie Sanders
25%
Joe Biden 18%
Lincoln Chafee 0%
Lawrence Lessig 0%
Martin O’Malley 0%
Jim Webb 0%
Other 1%
Wouldn't vote 6%
Undecided 12%
Hillary Clinton
47%
Bernie Sanders
29%
Jim Webb 1%
Lincoln Chafee 0%
Lawrence Lessig 0%
Martin O’Malley 0%
Other 1%
Wouldn't vote 6%
Undecided 16%
Quinnipiac University[45]

Margin of error: ± 4.6%
Sample size: 459

March 6–9, 2015 Hillary Clinton
53%
Elizabeth Warren
15%
Joe Biden 8%
Bernie Sanders 2%
Martin O’Malley 1%
Jim Webb 1%
Other 2%
Wouldn't vote 3%
Undecided 15%

Delaware[edit]

Delegate count: 21 Pledged, 10 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
April 26, 2016
Poll source Date 1st 2nd Other
Official Primary results April 26, 2016 Hillary Clinton
59.8%
Bernie Sanders
39.2%
Other
1.1%
Gravis Marketing

Margin of error: ± 3.1%
Sample size: 1,026

April 17–18, 2016 Hillary Clinton
45%
Bernie Sanders
38%
Others / Undecided
17%

Florida[edit]

Delegate count: 214 Pledged, 32 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 15, 2016
Poll source Date 1st 2nd Other
Official Primary results March 15, 2016 Hillary Clinton
64.4%
Bernie Sanders
33.3%
Other
2.3%
ARG[46]

Margin of error: ± 5.0%
Sample size: 400

March 11–13, 2016 Hillary Clinton
58%
Bernie Sanders
37%
Others / Undecided 5%
Quinnipiac[47]

Margin of error: ± 4.3%
Sample size: 519

March 8–13, 2016 Hillary Clinton
60%
Bernie Sanders
34%
Others / Undecided 6%
Public Policy Polling[48]

Margin of error: ± 3.9%
Sample size: 627

March 11–12, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided 11%
CBS News/YouGov[49]

Margin of error: ± 4.5%
Sample size: 796

March 9–11, 2016 Hillary Clinton
62%
Bernie Sanders
34%
Others / Undecided 4%
Florida Atlantic University[50]

Margin of error: ± 5%
Sample size: 414

March 8–11, 2016 Hillary Clinton
59%
Bernie Sanders
31%
Others / Undecided 10%
NBC News/Wall Street Journal/Marist[51]

Margin of error: ± 4.4%
Sample size: 500

March 4–10, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided 5%
WTSP/Mason-Dixon[52]

Margin of error: ± 4.5%
Sample size: 500

March 7–9, 2016 Hillary Clinton
68%
Bernie Sanders
23%
Others / Undecided 9%
Quinnipiac[53]

Margin of error: ± 4.3%
Sample size: 511

March 2–7, 2016 Hillary Clinton
62%
Bernie Sanders
32%
Others / Undecided 6%
SurveyUSA/Bay News 9/News 13[54]

Margin of error: ± 3.4%
Sample size: 823

March 4–6, 2016 Hillary Clinton
61%
Bernie Sanders
30%
Others / Undecided 9%
CNN/ORC[55]

Margin of error: ± 6.0%
Sample size: 264

March 2–6, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided 5%
Wash Post/Univision[56]

Margin of error: ± 6.0%
Sample size: 449

March 2-5, 2016 Hillary Clinton
64%
Bernie Sanders
26%
Others / Undecided 10%
University of North Florida[57]

Margin of error: ± 3.7%
Sample size: 685

February 22–27, 2016 Hillary Clinton
54%
Bernie Sanders
24%
Others / Undecided 22%
Public Policy Polling[58]

Margin of error: ± 5%
Sample size: 388

February 24–25, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided 11%
Gravis Marketing[59]

Margin of error: ± 4.3%
Sample size: 514

February 24, 2016 Hillary Clinton
58%
Bernie Sanders
42%
Quinnipiac[60]

Margin of error: ± 4.5%
Sample size: 476

February 21–24, 2016 Hillary Clinton
59%
Bernie Sanders
33%
Others / Undecided 8%
Florida Southern College[61]

Margin of error: ± 4.0%
Sample Size: 608

January 30 – February 6, 2016 Hillary Clinton
43%
Bernie Sanders
26%
Others / Undecided 31%
Florida Atlantic University[62]

Margin of error: ± 5.0%
Sample Size: 371

January 15–18, 2016 Hillary Clinton
62%
Bernie Sanders
26%
Martin O'Malley 2%
Not Reported

Georgia[edit]

Delegate count: 102 Pledged, 15 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
71.3%
Bernie Sanders
28.2%
Other 0.5%
SurveyMonkey[83]

Margin of error: ± ?
Sample size: 961

February 22–29, 2016 Hillary Clinton
59%
Bernie Sanders
36%
Others / Undecided 5%
WSB-TV/Landmark[84]

Margin of error: ± 3.5
Sample size: 800

February 28, 2016 Hillary Clinton
70%
Bernie Sanders
23%
Others / Undecided 7%
WSB-TV/Landmark[85]

Margin of error: ± 3.5%
Sample size: 800

February 26, 2016 Hillary Clinton
68%
Bernie Sanders
22%
Others / Undecided
10%
YouGov/CBS News[86]

Margin of error: ± 8.6%
Sample size: 492

February 22–26, 2016 Hillary Clinton
63%
Bernie Sanders
35%
Others / Undecided 2%
WABE 90.1[87]

Margin of error: ± 4.1%
Sample size: 400

February 22–24, 2016 Hillary Clinton
62%
Bernie Sanders
29%
Others / Undecided 9%
TEGNA/SurveyUSA[88]

Margin of error: ± 4.2%
Sample size: 501

February 22–23, 2016 Hillary Clinton
66%
Bernie Sanders
27%
Others / Undecided 7%
FOX 5 Atlanta[89]

Margin of error: ± 4.4%
Sample size: 491

February 22–23, 2016 Hillary Clinton
57%
Bernie Sanders
29%
Others / Undecided 14%
NBC News/Wall St. Jrnl[90]

Margin of error: ± 4.6%
Sample size: 461

February 18–23, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided 6%
WSB-TV/Landmark[91]

Margin of error: ± 3.7%
Sample size: 700

February 21, 2016 Hillary Clinton
72%
Bernie Sanders
20%
Others / Undecided 8%
Public Policy Polling[92]

Margin of error: ± 4.4%
Sample size: 500

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
26%
Landmark/RosettaStone

Margin of error: ± 4.0%
Sample size: 600

February 4, 2016 Hillary Clinton
63.3%
Bernie Sanders
21.5%
Undecided 15.2%
WXIA-TV/SurveyUSA[93]

Margin of error: ± 4.8%
Sample size: 2075

October 15–26, 2015 Hillary Clinton
73%
Bernie Sanders
16%
Martin O'Malley 4%
Undecided 5%
Opinion Savvy[94]

Margin of error: ± 4.8
Sample size: 413

Published September 3, 2015 Hillary Clinton
51%
Bernie Sanders
24%
Joe Biden 15%
Lincoln Chafee 5%
Martin O'Malley 0%
Jim Webb 0%
Someone else 1%
Undecided 5%

Hawaii[edit]

Delegate count: 53 Pledged, 7 Unpledged Delegate count: 25 Pledged, 9 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 26, 2016
Poll source Date 1st 2nd
Caucus results April 26, 2016 Bernie Sanders
69.8%
Hillary Clinton
30.0%

No polls were conducted for the Hawaii Democratic caucuses

Idaho[edit]

Delegate count: 23 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 22, 2016
Poll source Date 1st 2nd Other
Caucus results March 24, 2016 Bernie Sanders
78.04%
Hillary Clinton
21.21%
Other
0.75%
Dan Jones & Associates [95]

Margin of error: ± 4.0%
Sample size: 601

February 17–26, 2016 Bernie Sanders
47%
Hillary Clinton
45%
Dan Jones & Associates [96]

Margin of error: ± 4.02%
Sample size: 595

October 28 – November 4, 2015 Hillary Clinton
55%
Bernie Sanders
35%
Other candidates 4%
Don't know 6%
Dan Jones & Associates[97]

Margin of error: ± 4%
Sample size: 586

September 22–30, 2015 Hillary Clinton
38%
Bernie Sanders
36%
Joe Biden 16%
Other/DK/NR 10%
Dan Jones & Associates[98]

Margin of error: ± ?
Sample size: ?

Published August 9, 2015 Hillary Clinton
44%
Bernie Sanders
22%
Joe Biden 15%
Other/DK/NR 19%
Idaho Politics Weekly[99]

Margin of error: ± ?
Sample size: ?

June 17 – July 1, 2015 Hillary Clinton
19%
Bernie Sanders
12%
Joe Biden 10%
Someone else 18%
Don't know 32%

Illinois[edit]

Delegate count: 156 Pledged, 26 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 15, 2016
Poll source Date 1st 2nd Other
Primary results March 15, 2016 Hillary Clinton
50.6%
Bernie Sanders
48.6%
Others
0.8%
McKeon & Associates[100]

Margin of error: ± 4.1%
Sample size: 428

March 12, 2016 Hillary Clinton
31%
Bernie Sanders
30%
Others / Undecided 39%
Public Policy Polling[101]

Margin of error: ± 3.9%
Sample size: 627

March 11–12, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Others / Undecided 7%
CBS News/YouGov[102]

Margin of error: ± 5.5%
Sample size: 756

March 9–11, 2016 Bernie Sanders
48%
Hillary Clinton
46%
Others / Undecided 6%
NBC News/Wall Street Journal/Marist[103]

Margin of error: ± 4.3%
Sample size: 529

March 4–10, 2016 Hillary Clinton
51%
Bernie Sanders
45%
Others / Undecided 4%
We Ask America[104]

Margin of error: ± 3.11%
Sample size: 994

March 7–8, 2016 Hillary Clinton
62%
Bernie Sanders
25%
Others / Undecided 13%
Chicago Tribune[105]

Margin of error: ±4.1%
Sample size: 600

March 2–6, 2016 Hillary Clinton
67%
Bernie Sanders
25%
Others / Undecided 8%
We Ask America[106]

Margin of error: ± 3.0
Sample size: 1,116

February 24, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided 15%
The Simon Poll/SIU[107]

Margin of error: ± 5.6
Sample size: 306

February 15–20, 2016 Hillary Clinton
51%
Bernie Sanders
32%
Others / Undecided 17%
The Illinois Observer[108]

Margin of error: ± 4.23
Sample size: 560

February 11, 2016 Hillary Clinton
58%
Bernie Sanders
25%
Others / Undecided 18%
McKeon & Associates[109]

Margin of error: ± 3.9
Sample size: 846

February 3–4, 2016 Hillary Clinton
36%
Bernie Sanders
25%
Others / Undecided 39%
Public Policy Polling[110]

Margin of error: ± 4.9%
Sample size: 409

July 20–21, 2015 Hillary Clinton
60%
Bernie Sanders
23%
Others / Undecided 17%

Indiana[edit]

Delegate count: 83 Pledged, 9 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
May 3, 2016
Poll source Date 1st 2nd Other
Official Primary Results May 3, 2016 Bernie Sanders
52.5%
Hillary Clinton
47.5%
ARG[111]

Margin of error: ± 5%
Sample size: 400

April 27-28, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Others / Undecided
6%
NBC/WSJ/Marist[112]

Margin of error: ± 3.9%
Sample size: 645

April 26-28, 2016 Hillary Clinton
50%
Bernie Sanders
46%
Others / Undecided
4%
IPFW/Mike Downs Center[113]

Margin of error: ± 4.9%
Sample size: 400

April 13-27, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
IPFW/Downs Center[114]

Margin of error: ± 4.9%
Sample size: 400

April 18-23, 2016 Hillary Clinton
54%
Bernie Sanders
41%
Others / Undecided
5%
CBS/YouGov[115]

Margin of error: ± 8.2%
Sample size: 439

April 20-22, 2016 Hillary Clinton
49%
Bernie Sanders
44%
Others / Undecided
7%
FOX News[116]

Margin of error: ± 4%
Sample size: 603

April 18-21, 2016 Hillary Clinton
46%
Bernie Sanders
42%
Others / Undecided
12%
WTHR News[117]

Margin of error: ± 4.47%
Sample size: 500

April 18-21, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Others / Undecided
7%

Iowa[edit]

Delegate count: 44 Pledged, 8 Unpledged

Winner
Star.svg Hillary Clinton
Caucus date
February 1, 2016
Poll source Date 1st 2nd Other
Caucus results February 1, 2016 Hillary Clinton
49.9%
Bernie Sanders
49.6%
Martin O'Malley 0.6%
Emerson College[118]
Margin of error: ± 5.6%
Sample size: 300
January 29–31, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Martin O'Malley 4%
Undecided 2%
Quinnipiac University[119]
Margin of error: ± 3.2%
Sample size: 919
January 25–31, 2016 Bernie Sanders
49%
Hillary Clinton
46%
Martin O'Malley 3%
Undecided 2%
Des Moines Register– Bloomberg–Selzer[120]
Margin of error: ± 4%
Sample size: 602
January 26–29, 2016 Hillary Clinton
45%
Bernie Sanders
42%
Martin O'Malley 3%
Undecided or Not Committed 9%
Public Policy Polling[121]

Margin of error ± 3.4%
Sample size: 851

January 26–27, 2016 Hillary Clinton
48%
Bernie Sanders
40%
Martin O'Malley 7%
No preference 5%
Gravis Marketing[122]

Margin of error ± 3%
Sample size: 810

January 26–27, 2016 Hillary Clinton
53%
Bernie Sanders
42%
Martin O'Malley 5%
No preference 0%
Monmouth University[123]

Margin of error ± 4.4%
Sample size: 504

January 23–26, 2016 Hillary Clinton
47%
Bernie Sanders
42%
Martin O'Malley 6%
Undecided 5%
American Research Group[124]

Margin of error ± 5.0%
Sample size: 400

January 21–24, 2016 Bernie Sanders
48%
Hillary Clinton
45%
Martin O'Malley 3%
No preference 4%
Quinnipiac University[125]

Margin of error: ± 4%
Sample size: 606

January 18–24, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Martin O'Malley 4%
Undecided 2%
ISU/WHO-HD[126]

Margin of error: ±
Sample size: 356

January 5–22, 2016 Hillary Clinton
47%
Bernie Sanders
45%
Martin O'Malley <1%
Undecided 7%
Fox News[127]

Margin of error ± 4.5%
Sample size: 432

January 18–21, 2016 Hillary Clinton
48%
Bernie Sanders
42%
Martin O'Malley 3%
No preference 7%
YouGov/CBS News[128]

Margin of error ± 8.9%
Sample size: 906

January 17–21, 2016 Bernie Sanders
47%
Hillary Clinton
46%
Martin O'Malley 5%
No preference 2%
Emerson College Polling Society[129]

Margin of error: ± 5.9%
Sample size: 271

January 18–20, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Martin O'Malley 3%
Undecided 2%
CNN/ORC[130]

Margin of error: ± 6%
Sample size: 280

January 15–20, 2016 Bernie Sanders
51%
Hillary Clinton
43%
Martin O'Malley 4%
Undecided 2%
Monmouth College/KBUR[131]

Margin of error: ± 4.1%
Sample size: 500

January 18–19, 2016 Hillary Clinton
47.7%
Bernie Sanders
39.3%
Martin O'Malley 7.4%
Undecided 5%
Loras College[132]

Margin of error: ± 4.4%
Sample size: 580

January 8–10, 2016 Hillary Clinton
46%
Bernie Sanders
40%
Martin O'Malley 8%
Undecided 5%
Public Policy Polling[133]

Margin of error: ± 4.1%
Sample size: 580

January 8–10, 2016 Hillary Clinton
46%
Bernie Sanders
40%
Martin O'Malley 8%
Undecided 5%
Bloomberg/DMR[134]

Margin of error: ± 4.4%
Sample size: 503

January 7–10, 2016 Hillary Clinton
42%
Bernie Sanders
40%
Martin O'Malley 4%
Other/Undecided 14%
American Research Group[135]

Margin of error: ± 4.0%
Sample size: 600

January 6–10, 2016 Bernie Sanders
47%
Hillary Clinton
44%
Martin O'Malley 3%
Undecided 5%
Quinnipiac University[136]

Margin of error: ± 4.4%
Sample size: 492

January 5–10, 2016 Bernie Sanders
49%
Hillary Clinton
44%
Martin O'Malley 4%
Undecided 3%
Mason-Dixon/AARP[137]

Margin of error: ±
Sample size: 503

January 4–8, 2016 Hillary Clinton
49%
Bernie Sanders
42%
Martin O’Malley 5%
Not Reported 4%
NBC News/WSJ/Marist[138]

Margin of error: ± 4.8%
Sample size: 422

January 2–7, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Martin O’Malley 5%
Undecided 3%


Kansas[edit]

Delegate count: 33 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 5, 2016
Poll source Date 1st 2nd 3rd Other
Caucus results March 5, 2016 Bernie Sanders
67.9%
Hillary Clinton
32.1%
Uncommitted
0.0%
Fort Hays State University[170]

Margin of error: ± 5.0
Sample size: 440

February 19–26, 2016 Hillary Clinton
33%
Bernie Sanders
23%
Undecided 44%
Suffolk University[171]

Margin of error: ± ?
Sample size: 118

September 27–30, 2014 Hillary Clinton
62%
Elizabeth Warren
14%
Joe Biden
4%
Andrew Cuomo 4%, Martin O'Malley 1%, Other 2%, Undecided/Refused 14%

Kentucky[edit]

Delegate count: 55 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
May 17, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results May 17, 2016 Hillary Clinton
46.8%
Bernie Sanders
46.3%
Others / Uncommitted
6.9%
Public Policy Polling[172]

Margin of error: ± 4.4%
Sample size: 501

March 1-2, 2016 Hillary Clinton
43%
Bernie Sanders
38%
Others / Undecided
19%
Public Policy Polling[173]

Margin of error: ± 4%
Sample size: 610

June 18–21, 2015 Hillary Clinton
56%
Bernie Sanders
12%
Jim Webb
7%
Lincoln Chafee 5%, Martin O'Malley 3%, Not sure 18%

Louisiana[edit]

Delegate count: 51 Pledged, 8 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 5, 2016
Poll source Date 1st 2nd 3rd Other
Certified Primary results March 5, 2016 Hillary Clinton
71.1%
Bernie Sanders
23.2%
Others
5.7%
Magellan Strategies[174]

Margin of error: ± 3.3%
Sample size: 865

March 1, 2016 Hillary Clinton
61%
Bernie Sanders
14%
Others / Undecided
25%
Public Policy Polling[175]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
29%
WWL-TV-Clarus[176]

Margin of error: ?
Sample size: ?

September 20–23, 2015 Hillary Clinton
57%
Joe Biden
22%
Bernie
Sanders
7%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%

Maine[edit]

Delegate count: 25 Pledged, 5 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
March 6, 2016
Poll source Date 1st 2nd Other
Caucus results March 6, 2016 Bernie Sanders
64.3
Hillary Clinton
35.5%
Other
0.2%
Critical Insights[177]

Margin of error: 4%
Sample size: 600

September 24–30, 2015 Bernie Sanders
28%
Hillary Clinton
27%
Other/DK/NR 45%

Maryland[edit]

Delegate count: 95 Pledged, 23 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
April 26, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results April 26, 2016 Hillary Clinton
62.5%
Bernie Sanders
33.8%
Others / Uncommitted
3.7%
ARG[178]

Margin of error: ± 5.0%
Sample size: 400

April 21-24, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
Monmouth[179]

Margin of error: ± 5.7%
Sample size: 300

April 18-20, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided
11%
Public Policy Polling[180]

Margin of error: ± 4.4%
Sample size: 492

April 15-17, 2016 Hillary Clinton
58%
Bernie Sanders
33%
Others / Undecided
9%
NBC 4/Marist[181]

Margin of error: ± 3.5%
Sample size: 775

April 5-9, 2016 Hillary Clinton
58%
Bernie Sanders
36%
Others / Undecided
6%
University of Maryland/Washington Post[182]

Margin of error: ± 5.5%
Sample size: 539

March 30 - April 4, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
Baltimore Sun[183]

Margin of error: ± 4.9%
Sample size: 400

March 4-8, 2016 Hillary Clinton
61%
Bernie Sanders
28%
Others / Undecided
11%
Gonzales/Arscott Research[184]

Margin of error: ± 5.0
Sample size: 411

February 29-March 4, 2016 Hillary Clinton
57%
Bernie Sanders
26%
Others / Undecided
17%
Goucher[185]

Margin of error: ± 3.5
Sample size: 794

February 13–18, 2016 Hillary Clinton
58%
Bernie Sanders
28%
Others / Undecided
14%
Baltimore Sun/University of Baltimore

Margin of error: ± 5%
Sample size: 402

January 11–16, 2016 Hillary Clinton
40%
Bernie Sanders
27%
Others / Undecided
33%

Massachusetts[edit]

Delegate count: 91 Pledged, 25 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
49.7%
Bernie Sanders
48.3%
Others / Uncommitted
2.0%
SurveyMonkey[188]

Margin of error: ± ?
Sample size: 1,224

February 22–29, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
Emerson College[189]

Margin of error: ± 3.7%
Sample size: 670

February 26–28, 2016 Hillary Clinton
54%
Bernie Sanders
43%
Others / Undecided
3%
Suffolk University[190]

Margin of error: ± 4.4%
Sample size: 500

February 25–27, 2016 Hillary Clinton
50%
Bernie Sanders
42%
Others / Undecided
8%
WBZ-UMass Amherst[191]

Margin of error: ± 6.5%
Sample size: 400

February 19–25, 2016 Hillary Clinton
47%
Bernie Sanders
44%
Others / Undecided
9%
WBUR[192]

Margin of error: ± 4.9%
Sample size: 418

February 21–23, 2016 Hillary Clinton
49%
Bernie Sanders
44%
Others / Undecided
7%
Emerson College[193]

Margin of error: ± 4.75%
Sample size: 417

February 19–21, 2016 Hillary Clinton
46%
Bernie Sanders
46%
Undecided 5%
Public Policy Polling[194]

Margin of error: ± 4.2
Sample Size: 538

February 14–16, 2016 Bernie Sanders
49%
Hillary Clinton
42%
Undecided 9%
Emerson College

Margin of error: ± 6.0%
Sample size: 265

October 16–18, 2015 Hillary Clinton
59%
Bernie Sanders
25%
Jim Webb
5%
Martin O'Malley 3%, Lincoln Chafee 3%, Other 2%, Undecided 3%
Emerson College[195]

Margin of error: ± ?
Sample size: 430

March 14–19, 2015 Hillary Clinton
43%
Elizabeth Warren
16%
Joe Biden
10%
Bernie Sanders 6%, Martin O'Malley 2%, Other/Undecided 24%
Gravis Marketing

Margin of error: ± 4%
Sample size: 358

January 19–21, 2015 Hillary Clinton
46%
Elizabeth Warren
22%
Undecided 32%
Suffolk University

Margin of error: ± 4.9%
Sample size: 400

August 21–24, 2014 Hillary Clinton
55%
Elizabeth Warren
17.25%
Joe Biden
7.75%
Andrew Cuomo 4.75%, Martin O'Malley 1.5%, Undecided 12.25%, Refused 1.25%, Other 0.25%
Public Policy Polling

Margin of error: ± 3.8%
Sample size: 666

May 1–2, 2013 Hillary Clinton
55%
Joe Biden
17%
Andrew Cuomo
4%
Deval Patrick 4%, Elizabeth Warren 4%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Brian Schweitzer 0%, Mark Warner 0%, Someone else/Not sure 14%

Michigan[edit]

Delegate count: 130 Pledged, 17 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
March 8, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results March 8, 2016 Bernie Sanders
49.7%
Hillary Clinton
48.3%
Others / Uncommitted
2.1%
FOX 2 Detroit/Mitchell[196]

Margin of error: ± 4.5%
Sample size: 482

March 7, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided
5%
FOX 2 Detroit/Mitchell[197]

Margin of error: ± 4.5%
Sample size: 475

March 6, 2016 Hillary Clinton
66%
Bernie Sanders
29%
Others / Undecided
5%
Monmouth[198]

Margin of error: ± 5.6%
Sample size: 302

March 3–6, 2016 Hillary Clinton
55%
Bernie Sanders
42%
Others / Undecided
4%
ARG[199]

Margin of error: ± 5.0%
Sample size: 400

March 4–5, 2016 Hillary Clinton
60%
Bernie Sanders
36%
Others / Undecided
4%
CBS News/YouGov[199]

Margin of error: ± 7.7%
Sample size: 597

March 2–4, 2016 Hillary Clinton
55%
Bernie Sanders
44%
Others / Undecided
1%
Mitchell/FOX 2[200]

Margin of error: ± 4.0%
Sample size: 610

March 2–3, 2016 Hillary Clinton
55%
Bernie Sanders
37%
Others / Undecided
8%
NBC News/Wall St. Jrnl[201]

Margin of error: ± 4.2%
Sample size: 546

March 1–3, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Others / Undecided
3%
MSU[202]

Margin of error: ± 6.1%
Sample size: 262

January 25-March 3, 2016 Hillary Clinton
52%
Bernie Sanders
47%
Others / Undecided
1%
FOX 2 Detroit/Mitchell[203]

Margin of error: ± 4.7%
Sample size: 427

March 1, 2016 Hillary Clinton
61%
Bernie Sanders
33%
Others / Undecided
6%
MRG[204]

Margin of error: ± 4.0%
Sample size: 218

February 22–27, 2016 Hillary Clinton
56%
Bernie Sanders
36%
Others / Undecided
8%
FOX 2 Detroit/Mitchell[205]

Margin of error: ± 5.3%
Sample size: 344

February 23, 2016 Hillary Clinton
65%
Bernie Sanders
31%
Others / Undecided
4%
ARG[206]

Margin of error: ± 5%
Sample size: 400

February 19–20, 2016 Hillary Clinton
53%
Bernie Sanders
40%
Others / Undecided
7%
Fox 2 Detroit/Mitchell[207]

Margin of error: ± 4.69%
Sample size: 430

February 15, 2016 Hillary Clinton
60%
Bernie Sanders
27%
Others / Undecided 13%
Public Policy Polling[208]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
50%
Bernie Sanders
40%
Fox 2 Detroit/Mitchell[209]

Margin of error: ± 5.5%
Sample size: 321

February 4, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided 15%
IMP/Target Insyght [209]

Margin of error: ± 5.0%
Sample size: 400

February 2–4, 2016 Hillary Clinton
62%
Bernie Sanders
30%
Others / Undecided 8%
Marketing Resource Group[210]

Margin of error: ± 4%
Sample size: 600

September 9–14, 2015 Hillary Clinton
41%
Bernie Sanders
22%
Joe Biden 22% Martin O'Malley 1%, Undecided 12%
Public Policy Polling[211]

Margin of error: ± 4.7%
Sample size: 431

June 25–28, 2015 Hillary Clinton
57%
Bernie Sanders
25%
Lincoln Chafee 5% Jim Webb 2%, Martin O'Malley 1%, Not sure 10%
Suffolk

Margin of error: ± ?
Sample size: 212

September 6–10, 2014 Hillary Clinton
61%
Joe Biden
17%
Elizabeth Warren
7%
Andrew Cuomo 4%, Martin O'Malley 1%, Undecided 9%, Refused 1%

Minnesota[edit]

Delegate count: 77 Pledged, 16 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 1, 2016
Poll source Date 1st 2nd 3rd Other
Caucus results March 1, 2016 Bernie Sanders
61.6%
Hillary Clinton
38.4%
Star Tribune/Mason-Dixon[212]

Margin of error: ± 5.7%
Sample size: 800

January 18–20, 2016 Hillary Clinton
59%
Bernie Sanders
25%
Martin O'Malley
1%
Undecided 15%
Public Policy Polling[213]

Margin of error: ± 4.9%
Sample size: 426

July 30 – August 2, 2015 Hillary Clinton
50%
Bernie Sanders
32%
Martin O'Malley
4%
Lincoln Chafee 3%, Jim Webb 2%, Not sure 10%
Suffolk University[214]

Margin of error: ± ?
Sample size: 100

April 24–28, 2014 Hillary Clinton
63%
Elizabeth Warren
15%
Joe Biden
4%
Cory Booker 3%, Deval Patrick 2%, Mark Warner 2%, Andrew Cuomo 1%, Undecided 10%
Public Policy Polling[215]

Margin of error: ± 5.1%
Sample size: 373

January 18–20, 2013 Hillary Clinton
59%
Joe Biden
14%
Amy Klobuchar
11%
Elizabeth Warren 4%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 1%, Mark Warner 0%, Someone Else/Undecided 10%
Amy Klobuchar
43%
Andrew Cuomo
14%
Elizabeth Warren
10%
Martin O'Malley 1%, Deval Patrick 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 30%

Mississippi[edit]

Delegate count: 36 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 8, 2016
Poll source Date 1st 2nd Other
Official Primary results March 8, 2016 Hillary Clinton
82.5%
Bernie Sanders
16.6%
Others / Uncommitted
0.9%
Magellan Strategies[216]

Margin of error: ±4.5%
Sample size: 471

February 29, 2016 Hillary Clinton
65%
Bernie Sanders
11%
Others / Undecided
24%
Public Policy Polling[217]

Margin of error: ± 4.3
Sample size: 514

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
26%

Missouri[edit]

Delegate count: 71 Pledged, 13 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 15, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results March 15, 2016 Hillary Clinton
49.6%
Bernie Sanders
49.4%
Others / Uncommitted
1.0%
Public Policy Polling[218]

Margin of error: ± 3.4%
Sample size: 839

March 11–12, 2016 Bernie Sanders
47%
Hillary Clinton
46%
Others / Undecided
7%
RABA Research[219]

Margin of error: ± 4%
Sample size: 670

March 8–10, 2016 Hillary Clinton
44%
Bernie Sanders
40%
Others / Undecided
16%
Fort Hayes State University[220]

Margin of error: ± 8%
Sample size: 145

March 3–10, 2016 Hillary Clinton
47%
Bernie Sanders
40%
Others / Undecided 13%
Public Policy Polling[221]

Margin of error: 5.2%
Sample size: 352

August 7–9, 2015 Hillary Clinton
53%
Bernie Sanders
25%
Martin O'Malley
5%
Jim Webb 5%, Lincoln Chafee 1%, Not sure 12%

Montana[edit]

Delegate count: 21 Pledged, 6 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
June 7, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary Results June 7, 2016 Bernie Sanders
51.6%
Hillary Clinton
44.2%
No Preference
4.3%
Gravis Marketing[222]

Margin of error: 3%
Sample size: 1,035

February 24–25, 2015 Hillary Clinton
42.2%
Elizabeth Warren
34.3%
Joe Biden
5.9%
Jim Webb 2.9%, Mark Warner 2%, Martin O'Malley 1%, Unsure 11.8%
Public Policy Polling

Margin of error: ± 5%
Sample size: 381

November 15–17, 2013 Hillary Clinton
47%
Brian Schweitzer
26%
Elizabeth Warren
8%
Joe Biden 6%, Andrew Cuomo 3%, Cory Booker 1%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 7%
Public Policy Polling

Margin of error: ± 5.6%
Sample size: 316

June 21–23, 2013 Hillary Clinton
52%
Brian Schweitzer
17%
Joe Biden
9%
Cory Booker 3%, Elizabeth Warren 3%, Andrew Cuomo 1%, Kirsten Gillibrand 1%, Martin O'Malley 0%, Mark Warner 0%, Someone Else/Undecided 13%
Public Policy Polling

Margin of error: ± 5.1%
Sample size: 371

February 15–17, 2013 Hillary Clinton
58%
Brian Schweitzer
22%
Joe Biden
9%
Elizabeth Warren 5%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 5%
Brian Schweitzer
35%
Joe Biden
28%
Elizabeth Warren
13%
Mark Warner 5%, Andrew Cuomo 4%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Deval Patrick 0%, Someone Else/Undecided 13%
Brian Schweitzer
46%
Elizabeth Warren
18%
Andrew Cuomo
12%
Mark Warner 3%, Martin O'Malley 2%, Kirsten Gillibrand 1%, Deval Patrick 1%, Someone Else/Undecided 18%

Nebraska[edit]

Delegate count: 25 Pledged, 5 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
March 5, 2016
Poll source Date 1st 2nd 3rd
Caucus results March 5, 2016 Bernie Sanders
57.1%
Hillary Clinton
42.9%

No polls were conducted for the Nebraska Democratic caucuses

Nevada[edit]

Delegate count: 35 Pledged, 8 Unpledged

Winner
Star.svg Hillary Clinton
Caucus date
February 20, 2016
Poll source Date 1st 2nd Other
Caucus results February 20, 2016 Hillary Clinton
52.6%
Bernie Sanders
47.3%
Other
0.1%
Gravis Marketing[223]

Margin of error: ± 4.0
Sample size: 516

February 14–15, 2016 Hillary Clinton
53%
Bernie Sanders
47%
CNN/ORC[224]

Margin of error: ± 6.0
Sample size: 282

February 10–15, 2016 Hillary Clinton
48%
Bernie Sanders
47%
Others / Undecided
6%
Washington Free Beacon/TPC Research[225]

Margin of error: ± 2.9
Sample size: 1,236

February 8–10, 2016 Hillary Clinton
45%
Bernie Sanders
45%
Undecided 9%


New Hampshire[edit]

Delegate count: 24 Pledged, 8 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
February 9, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results February 9, 2016 Bernie Sanders
60.1%
Hillary Clinton
37.7%
Others / Uncommitted
2.2%
American Research Group[228]
Margin of error: ± 5%
Sample size: 408
February 6–7, 2016 Bernie Sanders
53%
Hillary Clinton
41%
Undecided
6%
University of Massachusetts-Lowell/7 News survey[229]
Margin of error: ± 5.38%
Sample size: 428
February 4–6, 2016 Bernie Sanders
57%
Hillary Clinton
40%
Others / Undecided
3%
University of Massachusetts-Lowell/7 News survey[230]
Margin of error: ± 5.3%
Sample size: 442
January 29–31, 2016 Bernie Sanders
61%
Hillary Clinton
30%
Martin O'Malley
1%
Undecided 6%
CNN/WMUR[231]
Margin of error: ± 5.3%
Sample size: 347
January 27–30, 2016 Bernie Sanders
57%
Hillary Clinton
34%
Martin O'Malley
1%
Other, Undecided, or Not Committed 9%
Emerson College[232]

Margin of error ± 5.2%
Sample Size: 350

January 25–26, 2016 Bernie Sanders
52%
Hillary Clinton
44%
Martin O'Malley
3%
Other 1%
American Research Group[233]

Margin of error ± 4%
Sample Size: 396

January 23–25, 2016 Bernie Sanders
49%
Hillary Clinton
42%
Martin O'Malley
3%
Other 6%
Franklin Pierce University/Boston Herald[234]

Margin of error ± 4.9%
Sample Size: 408

January 20–24, 2016 Bernie Sanders
55%
Hillary Clinton
39%
Martin O'Malley
2%
Other 5%
Fox News[235]

Margin of error ± 4.5%
Sample Size: 400

January 18–21, 2016 Bernie Sanders
56%
Hillary Clinton
34%
Martin O'Malley
3%
Other 7%
CBS News/YouGov[236]

Margin of error ± 6.2%
Sample Size:

January 18–21, 2016 Bernie Sanders
57%
Hillary Clinton
38%
Martin O'Malley
5%
No preference 0%
Suffolk University[237]

Margin of error –
Sample Size: 500

January 17–21, 2016 Bernie Sanders
50%
Hillary Clinton
41%
Martin O'Malley
2%
Other/Undecided 7%
American Research Group[238]

Margin of error ± 4%
Sample Size: 600

January 15–18, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Martin O'Malley
3%
Undecided 5%
Gravis Marketing[239]

Margin of error ± 4.5%
Sample Size: 472

January 15–18, 2016 Bernie Sanders
46%
Hillary Clinton
43%
Martin O'Malley
2%
Undecided 8%
CNN and WMUR[240]

Margin of error ± 4.8%
Sample Size: 420

January 13–18, 2016 Bernie Sanders
60%
Hillary Clinton
33%
Martin O'Malley
1%
Undecided 6%
Monmouth University Poll[241]

Margin of error ± 4.8%
Sample Size: 413

January 7–10, 2016 Bernie Sanders
53%
Hillary Clinton
39%
Martin O'Malley
5%
Undecided 3%
Fox News[242]

Margin of error ± 5%
Sample Size: 386

January 4–7, 2016 Bernie Sanders
50%
Hillary Clinton
37%
Martin O'Malley
3%
Other 2%, None of the above 5%, Don't know 3%
NBC News/WSJ/Marist

Margin of error: ± 4.8% Sample size: 425

January 2–7, 2016 Bernie Sanders
50%
Hillary Clinton
46%
Martin O'Malley
1%


New Jersey[edit]

Delegate count: 126 Pledged, 16 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 7, 2016
Poll source Date 1st 2nd Other
Official Primary results June 7, 2016 Hillary Clinton
63.3%
Bernie Sanders
36.7%
CBS/YouGov[267]

Margin of error: ± 5.4%
Sample size: 586

May 31 –
June 3, 2016
Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided
5%
American Research Group[268]

Margin of error: ± -%
Sample size: 400

May 31 –
June 2, 2016
Hillary Clinton
60%
Bernie Sanders
37%
Others / Undecided
3%
Quinnipiac[269]

Margin of error: ± 3.7%
Sample size: 696

May 10-16, 2016 Hillary Clinton
54%
Bernie Sanders
40%
Others / Undecided
6%
Monmouth University[270]

Margin of error: ± 5.7%
Sample size: 301

May 1-3, 2016 Hillary Clinton
60%
Bernie Sanders
32%
Others / Undecided
8%
Rutgers-Eagleton Poll[271]

Margin of error: ± 6.3%
Sample Size: 292

April 1-8, 2016 Hillary Clinton
51%
Bernie Sanders
42%
Others / Undecided
7%
Rutgers-Eagleton Poll[272]

Margin of error: ± 6.2%
Sample Size: 304

February 6–15, 2016 Hillary Clinton
55%
Bernie Sanders
32%
Others / Undecided
13%

New Mexico[edit]

Delegate count: 34 Pledged, 9 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 7, 2016
Poll source Date 1st 2nd Other
Official Primary Results June 7, 2016 Hillary Clinton
51.5%
Bernie Sanders
48.5%
BWD Global[277]

Margin of error: ± 2.5%
Sample size: 1,455

May 25-26, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Others / Undecided
19%
Albuquerque Journal[278]

Margin of error: ± 4.9%
Sample size: 401

February 23–25, 2016 Hillary Clinton
47%
Bernie Sanders
33%
Others / Undecided
20%

New York[edit]

Delegate count: 247 Pledged, 44 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
April 19, 2016
Poll source Date 1st 2nd Other
Primary results April 19, 2016 Hillary Clinton
57.5%
Bernie Sanders
41.6%
Void / Blank Votes
0.9%
Emerson College[279]

Margin of error: ± 4.6%
Sample size: 438

April 15-17, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
CBS News/YouGov[280]

Margin of error: ± 4.4%
Sample size: 1,033

April 13-15, 2016 Hillary Clinton
53%
Bernie Sanders
43%
Others / Undecided
4%
NBC/WSJ/Marist[281]

Margin of error: ± 4.0%
Sample size: 591

April 10-13, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Others / Undecided
3%
Quinnipiac[282]

Margin of error: ± 3.3%
Sample size: 860

April 6-11, 2016 Hillary Clinton
53%
Bernie Sanders
40%
Others / Undecided
7%
Gravis Marketing/
One America News[283]

Margin of error: ± 2.9%
Sample size: 1,134

April 5–6, 2016 Hillary Clinton
53%
Bernie Sanders
47%
Siena College[284]

Margin of error: ± 4.5%
Sample size: 538

April 6-11, 2016 Hillary Clinton
52%
Bernie Sanders
42%
Others / Undecided
6%
Monmouth[285]

Margin of error: ± 5.6%
Sample size: 302

April 8-10, 2016 Hillary Clinton
51%
Bernie Sanders
39%
Others / Undecided
10%
PPP[286]

Margin of error: ± 3.8%
Sample size: 663

April 7-10, 2016 Hillary Clinton
51%
Bernie Sanders
40%
Others / Undecided
9%
NBC News/WSJ/Marist[287]

Margin of error: ± 4.2%
Sample size: 557

April 6-10, 2016 Hillary Clinton
55%
Bernie Sanders
41%
Others / Undecided
4%
NY1/Baruch[288]

Margin of error: ± 4.2%
Sample size: 632

April 5-10, 2016 Hillary Clinton
50%
Bernie Sanders
37%
Others / Undecided
13%
Emerson College[289]

Margin of error: ± 5.4%
Sample size: 324

April 6-7, 2016 Hillary Clinton
56%
Bernie Sanders
38%
Others / Undecided
6%
FOX News[290]

Margin of error: ± 3.5%
Sample size: 801

April 4-7, 2016 Hillary Clinton
53%
Bernie Sanders
37%
Others / Undecided
10%
CBS News/YouGov[291]

Margin of error: ± 3.4%
Sample size: 718

March 29- April 1, 2016 Hillary Clinton
53%
Bernie Sanders
43%
Others / Undecided
4%
Quinnipiac[292]

Margin of error: ± 3.7%
Sample size: 693

March 22-29, 2016 Hillary Clinton
54%
Bernie Sanders
42%
Others / Undecided
4%
Emerson College[293]

Margin of error: ± 5.0%
Sample size: 373

March 14-16, 2016 Hillary Clinton
71%
Bernie Sanders
23%
Others / Undecided
6%
Siena College

Margin of error: ± 6.2%
Sample size: 368

February 28–March 3, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Others / Undecided
11%
Siena College

Margin of error: ± 5.6%
Sample size: 434

January 31 – February 3, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Others / Undecided
11%

North Carolina[edit]

Delegate count: 107 Pledged, 14 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 15, 2016
Poll source Date 1st 2nd 3rd Other
Primary results March 15, 2016 Hillary Clinton
54.5%
Bernie Sanders
40.9%
Others / Uncommitted
4.6%
Public Policy Polling[295]

Margin of error: ± 3.6%
Sample size: 747

March 11–13, 2016 Hillary Clinton
56%
Bernie Sanders
37%
Others / Undecided
7%
High Point University/SurveyUSA[296]

Margin of error: ± 3.8%
Sample size: 669

March 9–10, 2016 Hillary Clinton
58%
Bernie Sanders
34%
Others / Undecided
8%
WRAL/SurveyUSA[297]

Margin of error: ± 3.8%
Sample size: 687

March 4–7, 2016 Hillary Clinton
57%
Bernie Sanders
34%
Others / Undecided
9%
Civitas[298]

Margin of error: ± 4.4%
Sample size: 500

March 3-7, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided
15%
Elon University[299]

Margin of error: ± 3.6%
Sample size: 728

February 15–17, 2016 Hillary Clinton
47%
Bernie Sanders
37%
Others / Undecided 16%
SurveryUSA[300]

Margin of error: ± 4.7%
Sample size: 449

February 14–16, 2016 Hillary Clinton
51%
Bernie Sanders
36%
No Preference 4%, Undecided 9%
Public Policy Polling[301]

Margin of error: ± 4.1
Sample size: 575

February 14–16, 2016 Hillary Clinton
52%
Bernie Sanders
35%
Others / Undecided
13%
High Point[302]

Margin of error: ± 4.5%
Sample size: 478

January 30 – February 4, 2016 Hillary Clinton
55%
Bernie Sanders
29%
Martin O'Malley
1%
Not Sure 15%
Public Policy Polling[303]

Margin of error: ± 4.6%
Sample size: 461

January 18–19, 2016 Hillary Clinton
59%
Bernie Sanders
26%
Martin O'Malley
5%
Not Sure 10%
Civitas[304]

Margin of error: ± 4.4%
Sample size: 500

January 13–16, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Martin O'Malley
2%
Undecided 17%

North Dakota[edit]

Delegate count: 18 Pledged, 5 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
June 7, 2016
Poll source Date 1st 2nd Other
Caucus results June 7, 2016 Bernie Sanders
64.2%
Hillary Clinton
25.6%
Others 10.2%

Ohio[edit]

Delegate count: 143 Pledged, 16 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 15, 2016
Poll source Date 1st 2nd Other
Primary results March 15, 2016 Hillary Clinton
56.1%
Bernie Sanders
43.1%
Other
0.8%
ARG[312]

Margin of error: ± 5.0%
Sample size: 400

March 12–13, 2016 Hillary Clinton
52%
Bernie Sanders
45%
Others / Undecided
3%
Monmouth[313]

Margin of error: ± 5.6%
Sample size: 302

March 11–13, 2016 Hillary Clinton
54%
Bernie Sanders
40%
Others / Undecided
6%
Quinnipiac[314]

Margin of error: ± 4.2%
Sample size: 543

March 8–13, 2016 Hillary Clinton
51%
Bernie Sanders
46%
Others / Undecided
4%
Public Policy Polling[315]

Margin of error: ± 4.4%
Sample size: 502

March 11–12, 2016 Hillary Clinton
46%
Bernie Sanders
41%
Others / Undecided
13%
CBS News/YouGov[316]

Margin of error: ± 5.3%
Sample size: 777

March 9–11, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Others / Undecided
5%
NBC News/Wall Street Journal/Marist[317]

Margin of error: ± 4.6%
Sample size: 453

March 4–10, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
Quinnipiac[53]

Margin of error: ± 4.3%
Sample size: 521

March 2–7, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Others / Undecided
5%
Public Polling Policy

Margin of error: ± 4.4%
Sample size: 508

March 4–6, 2016 Hillary Clinton
56%
Bernie Sanders
35%
Others / Undecided
9%
CNN/ORC[318]

Margin of error: ± 5.5%
Sample size: 294

March 2–6, 2016 Hillary Clinton
63%
Bernie Sanders
33%
Others / Undecided
4%
Quinnipiac University

Margin of error: ± 4.3%
Sample size: 518

February 16–20, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
BW Community Research Institute

Margin of error: ± 5%
Sample size: 385

February 11–20, 2016 Bernie Sanders
45%
Hillary Clinton
44%
Others / Undecided
11%
Public Policy Polling

Margin of error: ± ?%
Sample size: 1,138

January 12–14, 2016 Hillary Clinton
53%
Bernie Sanders
37%
Not sure 10%

Oklahoma[edit]

Delegate count: 38 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
March 1, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results March 1, 2016 Bernie Sanders
51.9%
Hillary Clinton
41.5%
Others
6.6%
Monmouth[321]

Margin of error: ± 5.7%
Sample size: 300

February 25–28, 2016 Bernie Sanders
48%
Hillary Clinton
43%
Others / Undecided
9%
Sooner Poll/News 9/News on 6[322]

Margin of error: ± 4.3%
Sample size: 510

February 23–25, 2016 Hillary Clinton
40%
Bernie Sanders
31%
Others / Undecided
29%
Public Policy Polling[323]

Margin of error: ± 4.2%
Sample size: 542

February 14–16,
2016
Hillary Clinton
46%
Bernie Sanders
44%
Undecided 9%
Sooner Poll[324]

Margin of error: ± 5.0%
Sample size: 360

February 6–9, 2016 Hillary Clinton
43.9%
Bernie Sanders
28%
Undecided 28.1%
Sooner Poll[325]

Margin of error: ± 5.1%
Sample size: 369

November 12–15, 2015 Hillary Clinton
46.6%
Bernie Sanders
12.2%
Martin O'Malley
2.2%
Undecided 39.1%
The Oklahoman/Cole Hargrave Snodgrass & Associates[326]

Margin of error: ± 4.3%
Sample size: 550

October 19–22, 2015 Hillary Clinton
30%
Bernie Sanders
21%
Martin O'Malley
1%
Undecided 46%

Oregon[edit]

Delegate count: 61 Pledged, 13 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
May 17, 2016
Poll source Date 1st 2nd Other
Official Primary Results May 17, 2016 Bernie Sanders
56.2%
Hillary Clinton
42.1%
Misc.
1.7%
DHM Research[327]

Margin of error: ± 5.6%
Sample size: 901

May 6-9, 2016 Hillary Clinton
48%
Bernie Sanders
33%
Others / Undecided
19%
KATU-TV/SurveyUSA[328]

Margin of error: ± 4.0%
Sample size: 630

March 28-April 1, 2016 Hillary Clinton
37%
Bernie Sanders
36%
Others / Undecided
27%
DHM Research[329]

Margin of error: ± 7%
Sample size: 206

July 22–27, 2015 Hillary Clinton
44%
Bernie Sanders
39%
Others / Undecided
17%

Pennsylvania[edit]

Delegate count: 189 Pledged, 21 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
April 26, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary results April 26, 2016 Hillary Clinton
55.6%
Bernie Sanders
43.5%
Other
0.9%
FOX 29/Opinion Savvy[330]

Margin of error: ± 3.2%
Sample size: 942

April 24, 2016 Hillary Clinton
52%
Bernie Sanders
41%
Others / Undecided
7%
CPEC LLC[331]

Margin of error: ± 2.3%
Sample size: 665

April 22–24, 2016 Hillary Clinton
63%
Bernie Sanders
37%
Public Policy Polling[40]

Margin of error: ± 3.6%
Sample size: 728

April 22–24, 2016 Hillary Clinton
51%
Bernie Sanders
41%
Others / Undecided
9%
American Research Group[332]

Margin of error: ± 5.0%
Sample size: 400

April 21-24, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
Harper Polling[333]

Margin of error: ± 3.9%
Sample size: 641

April 21-23, 2016 Hillary Clinton
61%
Bernie Sanders
33%
Others / Undecided
6%
CBS/YouGov[334]

Margin of error: ± 6.7%
Sample size: 831

April 20-22, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Others / Undecided
6%
NBC/WSJ/Marist[335]

Margin of error: ± 1.9%
Sample size: 734

April 18-20, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
Monmouth[336]

Margin of error: ± 5.6%
Sample size: 302

April 17-19, 2016 Hillary Clinton
52%
Bernie Sanders
39%
Others / Undecided
9%
Franklin & Marshall College[337]

Margin of error: ± 5.3%
Sample size: 510

April 11-18, 2016 Hillary Clinton
58%
Bernie Sanders
31%
Others / Undecided
11%
FOX News[338]

Margin of error: ± 3.5%
Sample size: 805

April 4-7, 2016 Hillary Clinton
49%
Bernie Sanders
38%
Others / Undecided
13%
Quinnipiac[339]

Margin of error: ± 4.3%
Sample size: 514

March 30-April 4, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
Harper[340]

Margin of error: ± 4.0%
Sample size: 603

April 2-3, 2016 Hillary Clinton
55%
Bernie Sanders
33%
Others / Undecided
12%
Franklin & Marshall[341]

Margin of error: ± 4.7%
Sample size: 408

March 14-20, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Others / Undecided
19%
Harper[342]

Margin of error: ± 5.3%
Sample size: 347

March 1-2, 2016 Hillary Clinton
57%
Bernie Sanders
27%
Others / Undecided
16%
Franklin & Marshall College[343]

Margin of error: ± 3.1%
Sample size: 486

February 13–21, 2016 Hillary Clinton
48%
Bernie Sanders
27%
Others / Undecided
25%
Robert Morris University[344]

Margin of error: ± 4.5%
Sample size: 511

February 11–16, 2016 Hillary Clinton
48%
Bernie Sanders
41%
Others / Undecided
11%
Harper[345]

Margin of error: ± 3.8%
Sample size: 640

January 22–23, 2016 Hillary Clinton
55%
Bernie Sanders
28%
Martin O'Malley
4%
Undecided 13%
Franklin & Marshall[346]

Margin of error: ± 3.6%
Sample size: 361

January 18–23, 2016 Hillary Clinton
46%
Bernie Sanders
29%
Martin O'Malley
2%
Other 7%, Undecided 16%

Rhode Island[edit]

Delegate count: 24 Pledged, 9 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
April 26, 2016
Poll source Date 1st 2nd Other
Certified Primary results April 26, 2016 Bernie Sanders
54.7%
Hillary Clinton
43.1%
Others / Uncommitted
2.2%
Public Policy Polling[40]

Margin of error: ± 3.8%
Sample size: 668

April 22–24, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Others / Undecided
6%
Brown University[348]

Margin of error: ± 4.0%
Sample size: 436

April 19–21, 2016 Hillary Clinton
43%
Bernie Sanders
34%
Others / Undecided
23%
Brown University[349]

Margin of error: ± ?%
Sample size: 394

February 22–23, 2016 Hillary Clinton
49%
Bernie Sanders
40%
Others / Undecided
11%
Brown University[349]

Margin of error: ± ?%
Sample size: 396

February 17–20, 2016 Bernie Sanders
48%
Hillary Clinton
41%
Others / Undecided
11%

Primary Results

South Carolina[edit]

Delegate count: 53 Pledged, 6 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
27 February 2016
Poll source Date 1st 2nd 3rd Other
Official Primary Results February 27, 2016 Hillary Clinton
73.4%
Bernie Sanders
26.0%
Others
0.6%
Clemson[350]

Margin of error: 3.0%
Sample size: 650

February 20–25, 2016 Hillary Clinton
64%
Bernie Sanders
14%
Others / Undecided
22%
Emerson College[351]

Margin of error: 6.0%
Sample size: 266

February 22–24, 2016 Hillary Clinton
60%
Bernie Sanders
37%
Others / Undecided
3%
NBC/WSJ/Marist[352]

Margin of error: 4.8%
Sample size: 425

February 15–17, 2016 Hillary Clinton
60%
Bernie Sanders
32%
Other
8%
Bloomberg Politics[353]

Margin of error: 4.9%
Sample size: 403

February 13–17,
2016
Hillary Clinton
53%
Bernie Sanders
31%
Not sure
16%
ARG[354]

Margin of error: 5%
Sample size: 400

February 14–16, 2016 Hillary Clinton
61%
Bernie Sanders
31%
Someone else 1% No opinion 7%
Public Policy Polling[355]

Margin of error: ± 4%
Sample size: 525

February 14–15, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Undecided 12%
CNN/ORC[356]

Margin of error: 6%
Sample size: 289

February 10–15, 2016 Hillary Clinton
56%
Bernie Sanders
38%
Someone else 3% No opinion 4%
ARG[357]

Margin of error: ± 5.0%
Sample size: 400

February 12–13, 2016 Hillary Clinton
65%
Bernie Sanders
27%
Other 1%, Undecided 7%
One America News Network/Gravis Marketing[358]

Margin of error: ± 4%
Sample size: 507

February 11–13, 2016 Hillary Clinton
59%
Bernie Sanders
41%
YouGov/CBS News[359]

Margin of error: ± 8.7%
Sample size: 404

February 10–12, 2016 Hillary Clinton
59%
Bernie Sanders
40%
No Preference 1%
NBC/WSJ/Marist[360]

Margin of error: ± 4.6%
Sample size: 446

January 17–23, 2016 Hillary Clinton
64%
Bernie Sanders
27%
Martin O'Malley
2%
Undecided 7%
YouGov/CBS News[361]

Margin of error: ± 9.4%
Sample size: 388

January 17–21, 2016 Hillary Clinton
60%
Bernie Sanders
38%
Martin O'Malley
0%
Undecided 2%
SC New Democrats

Margin of error: ± ?%
Sample size: 583

January 12–15, 2016 Hillary Clinton
47%
Bernie Sanders
28%
Martin O'Malley
2%
Undecided 22%


South Dakota[edit]

Delegate count: 20 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 7, 2016
Poll source Date 1st 2nd Others / Undecided
Official Primary results June 7, 2016 Hillary Clinton
51.0%
Bernie Sanders
49.0%
Targeted Persuasion[373]

Margin of error: ±3.31%
Sample size: 874

May 23-24, 2016 Hillary Clinton
50%
Bernie Sanders
47%
Undecided
3%

Tennessee[edit]

Delegate count: 67 Pledged, 9 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
66.1%
Bernie Sanders
32.5%
Others / Uncommitted
1.5%
SurveyMonkey[188]

Margin of error: ?
Sample size: 533

February 22–29, 2016 Hillary Clinton
54%
Bernie Sanders
37%
Others / Undecided
9%
NBC/WSJ/Marist[374]

Margin of error: ± 3.8
Sample size: 405

February 22–25, 2016 Hillary Clinton
60%
Bernie Sanders
34%
Other
6%
Public Policy Polling[375]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
58%
Bernie Sanders
32%
Vanderbilt/PSRA

Margin of error: 6.7%
Sample size: 346

November 11–23, 2015 Hillary Clinton
48%
Bernie Sanders
28%
Martin O'Malley
3%
Undecided 10%, Other 5%, Wouldn't Vote 4%
MTSU[376]

Margin of error: ± 4%
Sample size: 603

October 25–27, 2015 Hillary Clinton
44%
Bernie Sanders 16% Don't know 25%

Texas[edit]

Delegate count: 222 Pledged, 30 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
65.2%
Bernie Sanders
33.2%
Others
1.6%
Emerson[377]

Margin of error: ± 5.9%
Sample size: 275

February 26–28, 2016 Hillary Clinton
68%
Bernie Sanders
26%
Others / Undecided
6%
American Research Group[378]

Margin of error: ± 5.0%
Sample size: 400

February 26–28, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
YouGov/CBS News[379]

Margin of error: ± 6.9%
Sample size: 750

February 22–26, 2016 Hillary Clinton
61%
Bernie Sanders
37%
Others / Undecided
2%
Monmouth[380]

Margin of error: ± 5.6
Sample size: 304

February 22–24, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided
6%
Emerson College[381]

Margin of error: ± 5.4
Sample size: 328

February 21–23, 2016 Hillary Clinton
56%
Bernie Sanders
40%
Others / Undecided
4%
NBC News/Wall St. Jrnl[382]

Margin of error: ± 4.9
Sample size: 405

February 18–23, 2016 Hillary Clinton
59%
Bernie Sanders
38%
Others / Undecided
3%
KTVT-CBS 11[383]

Margin of error: ± 3.8
Sample size: 675

February 22, 2016 Hillary Clinton
61%
Bernie Sanders
29%
Others / Undecided
10%
TEGNA/SurveyUSA[384]

Margin of error: ± 4.1
Sample size: 569

February 21–22, 2016 Hillary Clinton
61%
Bernie Sanders
32%
Others / Undecided
7%
Austin American-Statesman[385]

Margin of error: ± 5.0
Sample size: 411

February 19–22, 2016 Hillary Clinton
66%
Bernie Sanders
26%
Others / Undecided
8%
UT/TT[386]

Margin of error: ±4.57
Sample Size: ? Dem Voters

February 12–19, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Rocky de la Fuente
2%
Martin O'Malley 1%
Willie Wilson 1%
Public Policy Polling[387]

Margin of error: ± 4.3
Sample size: 514

February 14–16, 2016 Hillary Clinton
57%
Bernie Sanders
34%

Utah[edit]

Delegate count: 33 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 22, 2016
Poll source Date 1st 2nd 3rd Other
Caucus results March 24, 2016 Bernie Sanders
79.21%
Hillary Clinton
20.33%
Other
0.46%
Dan Jones & Associates[393]

Margin of error: ± 7%
Sample size: 250

March 8–15, 2016 Bernie Sanders
52%
Hillary Clinton
44%
Dan Jones & Associates[394]

Margin of error: ± ?
Sample size: 625

February 10–15, 2016 Hillary Clinton
51%
Bernie Sanders
44%
SurveyUSA[395]

Margin of error: ± 7.2%
Sample size: 188

January 6–13, 2016 Hillary Clinton
50%
Bernie Sanders
40%
Other/Undecided 10%
Dan Jones & Associates[396]

Margin of error: ± 3.9%
Sample size: 624

November 5–14, 2015 Hillary Clinton
54%
Bernie Sanders
34%
Martin O'Malley 3% Don't Know 5%
Dan Jones & Associates[397]

Margin of error: ?
Sample size: ?

September 8–17, 2015 Bernie Sanders
31%
Hillary Clinton
30%
Joe Biden
20%
Other/Undecided 19%
Dan Jones & Associates[398]

Margin of error: ± ?
Sample size: ?

July 14–21, 2015 Hillary Clinton
50%
Bernie Sanders
30%
Joe Biden
12%
Other/Undecided 8%
Dan Jones & Associates[399]

Margin of error: ± ?
Sample size: ?

March 3–5, 2015 Hillary Clinton
56%
Elizabeth Warren
25%
Joe Biden
4%
Other/Undecided 15%

Vermont[edit]

Delegate count: 16 Pledged, 10 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Official Primary results March 1, 2016 Bernie Sanders
85.7%
Hillary Clinton
13.6%
Others / Uncommitted
0.8%
The Castleton Polling Institute [400]

Margin of error: ± 3.27
Sample size: 895

February 3–17, 2016 Bernie Sanders
83.1%
Hillary Clinton
9.0%
Others / Undecided 7.9%
Public Policy Polling[401]

Margin of error: ± 3.7
Sample size: 500

February 14–16, 2016 Bernie Sanders
86%
Hillary Clinton
10%
Castleton University[402]

Margin of error: ± 4%
Sample size: 617

August 24 – September 14, 2015 Bernie Sanders
65%
Hillary Clinton
14%
Others 10%, Not sure 11%
Castleton University[403]

Margin of error: ± 3.8%
Sample size: 653

October 10, 2014 Bernie Sanders
36%
Hillary Clinton
29%
Neither 29%%, Not sure 5%, Refused 1%

Virginia[edit]

Delegate count: 95 Pledged, 14 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
64.3%
Bernie Sanders
35.2%
Other 0.5%
SurveyMonkey[188]

Margin of error: ?
Sample size: 908

February 22–29, 2016 Hillary Clinton
57%
Bernie Sanders
36%
Others / Undecided
7%
YouGov/CBS News[404]

Margin of error: 9.2%
Sample size: 471

February 22–26, 2016 Hillary Clinton
59%
Bernie Sanders
39%
Others / Undecided
2%
Monmouth[405]

Margin of error: ± 5.6%
Sample size: 302

February 22–24, 2016 Hillary Clinton
60%
Bernie Sanders
33%
Others / Undecided
7%
Roanoke College[406]

Margin of error: ± 4.8%
Sample size: 415

February 16–24, 2016 Hillary Clinton
50%
Bernie Sanders
33%
Others / Undecided
17%
Public Policy Polling[407]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
56%
Bernie Sanders
34%
Christopher Newport University[408]

Margin of error: ± 4.3%
Sample size: 735

February 3–14, 2016 Hillary Clinton
52%
Bernie Sanders
40%
Others / Undecided
8%

Washington[edit]

Delegate count: 101 Pledged, 17 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
March 26, 2016
Poll source Date 1st 2nd 3rd Other
Caucus results March 29, 2016 Bernie Sanders
72.72%
Hillary Clinton
27.10%
Other
0.18%
Gravis Marketing[413]

Margin of error: ± 6%
Sample size: 256

May 18–19, 2015 Hillary Clinton
35%
Elizabeth Warren
26%
Bernie Sanders
19%
Joe Biden 4%, Martin O'Malley 3%, Jim Webb 1%, Unsure 12%
Hillary Clinton
45%
Bernie Sanders
36%
Lincoln Chafee
2%
Bill De Blasio 2%, Martin O'Malley 2%, Jim Webb 1%, Unsure 12%
Public Policy Polling[414]

Margin of error: ± 5%
Sample size: 391

May 14–17, 2015 Hillary Clinton
57%
Bernie Sanders
24%
Martin O'Malley
4%
Jim Webb 2%, Lincoln Chafee 1%, Not sure 12%

West Virginia[edit]

Delegate count: 29 Pledged, 8 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
May 10, 2016
Poll source Date 1st 2nd 3rd Other
Primary results May 10, 2016 Bernie Sanders
51.4%
Hillary Clinton
35.8%
Paul Farrell
8.9%
Others
3.9%
MetroNews[415]

Margin of error: ±4.0%
Sample size: 315

April 22-May 2, 2016 Bernie Sanders
47%
Hillary Clinton
43%
Undecided 11%
Public Policy Polling[416]

Margin of error: ±3.9%
Sample size: 637

April 29-May 1, 2016 Bernie Sanders
45%
Hillary Clinton
37%
Undecided 18%
West Virginia Veterans/Thirty-Ninth Street Strategies[417]

Margin of error: ±3.9%
Sample size: 600

March 2-6, 2016 Hillary Clinton
44%
Bernie Sanders
31%
Paul Farrell
6%
Keith Judd 1%
Others 7%
Undecided 11%
Orion Strategies[418]

Margin of error: ±5.6%
Sample size: 306

February 20–21, 2016 Bernie Sanders
32%
Hillary Clinton
24%
Undecided 44%
REPASS Research

Margin of error: ±4.9%[419]
Sample size: 411

February 11–16, 2016 Bernie Sanders
57%
Hillary Clinton
29%
Orion Strategies[420]

Margin of error: ±4.9%[421]
Sample size: 306

August 27, 2015 Hillary Clinton
23%
Joe Biden
16%
Bernie Sanders
12%
Undecided 49%
Prism Surveys[422]

Margin of error: ± 3.21%
Sample size: 900

August 21, 2015 Hillary Clinton
36%
Bernie Sanders
32%
Undecided 32%

Wisconsin[edit]

Delegate count: 86 Pledged, 10 Unpledged

Winner
Star.svg Bernie Sanders
Primary date
April 5, 2016
Poll source Date 1st 2nd 3rd Other
Official Primary Results April 5, 2016 Bernie Sanders
56.6%
Hillary Clinton
43.1%
Others / Uncommitted
0.4%
ARG[423]

Margin of error: ± 5.0%
Sample size: 400

April 1–3, 2016 Hillary Clinton
49%
Bernie Sanders
48%
Others / Undecided
3%
Emerson[424]

Margin of error: ± 4.2%
Sample size: 542

March 30 – April 3, 2016 Bernie Sanders
51%
Hillary Clinton
43%
Others / Undecided
6%
CBS News/YouGov[425]

Margin of error: ± 3.7%
Sample size: 653

March 29 – April 1, 2016 Bernie Sanders
49%
Hillary Clinton
47%
Others / Undecided
4%
FOX Business[426]

Margin of error: ± 3.0%
Sample size: 860

March 28–30, 2016 Bernie Sanders
48%
Hillary Clinton
43%
Others / Undecided
10%
Loras College[427]

Margin of error: ± 4.8%
Sample size: 416

March 28–29, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
Public Policy Polling[428]

Margin of error: ± 3.7%
Sample size: 720

March 28–29, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Others / Undecided
8%
MULaw Poll[429]

Margin of error: ± 6.3%
Sample size: 405

March 24–28, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Others / Undecided
6%
Emerson College[430]

Margin of error: ± 4.6%
Sample size: 439

March 20–22, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
MULaw Poll[431]

Margin of error: ± 6.9%
Sample size: 343

February 18–21, 2016 Bernie Sanders
44%
Hillary Clinton
43%
Others / Undecided
13%
MULaw Poll[432]

Margin of error: ± 6.5%
Sample size: 312

January 21–24, 2016 Hillary Clinton
45%
Bernie Sanders
43%
Martin O'Malley
1%
Not Reported

Wyoming[edit]

Delegate count: 14 Pledged, 4 Unpledged

Winner
Star.svg Bernie Sanders
Caucus date
April 9, 2016
Poll source Date 1st 2nd
Caucus results March 5, 2016 Bernie Sanders
55.7%
Hillary Clinton
44.3%

No polls were conducted for the Wyoming Democratic caucuses.

District/territories[edit]

American Samoa[edit]

Delegate count: 6 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Caucus results March 1, 2016 Hillary Clinton
68.4%
Bernie Sanders
25.7%
Other
6.0%

District of Columbia[edit]

Delegate count: 20 Pledged, 26 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 14, 2016
Poll source Date 1st 2nd Other
Primary results June 14, 2016 Hillary Clinton
78.7%
Bernie Sanders
21.1%
Other
0.2%

Guam[edit]

Delegate count: 7 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
May 7, 2016
Poll source Date 1st 2nd Other
Caucus results May 7, 2016 Hillary Clinton
59.5%
Bernie Sanders
40.5%

Northern Marianas[edit]

Delegate count: 6 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
March 1, 2016
Poll source Date 1st 2nd Other
Caucus results March 12, 2016 Hillary Clinton
54.0%
Bernie Sanders
34.4%
Other
11.6%

Puerto Rico[edit]

Delegate count: 60 Pledged, 7 Unpledged

Winner
Star.svg Hillary Clinton
Primary date
June 5, 2016
Poll source Date 1st 2nd Other
Primary results June 5, 2016 Hillary Clinton
60.0%
Bernie Sanders
38.0%
Others 2.0%
Pasquines Polls[438]

Margin of error: ±%
Sample size: 249

May 23-30, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided
6%

Virgin Islands[edit]

Delegate count: 7 Pledged, 5 Unpledged

Winner
Star.svg Hillary Clinton
Caucus date
June 4, 2016
Poll source Date 1st 2nd Other
Caucus results June 4, 2016 Hillary Clinton
84.2%
Bernie Sanders
12.2%

See also[edit]

General election polling
Democratic primary polling
Republican primary polling

Notes[edit]

References[edit]

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