|• Total||101.88 km2 (39.34 sq mi)|
|Elevation||1,056 m (3,465 ft)|
|Population (Dec 2014)|
|• Density||12/km2 (32/sq mi)|
|Localities||North of the Rhine: Cumpadials, Clavadi, Sumvitg, Siltginas, Sogn Benedetg, Runs, Luven, Rabius, Tschuppina. South of the Rhine: Pardomat-Dado, Foppas, Falens, Laus, Reits, Giachentrina, Surrein, Val, Tenigerbad|
|Surrounded by||Disentis/Mustér, Linthal (Canton of Glarus), Trun, Obersaxen, Lumbrein, Vrin and Medel (Lucmagn)|
Sumvitg is first mentioned in 1175 as in Summovico.
Sumvitg has an area, as of 2006[update], of 101.8 km2 (39.3 sq mi). Of this area, 24.8% is used for agricultural purposes, while 26.8% is forested. Of the rest of the land, 1.3% is settled (buildings or roads) and the remainder (47.1%) is non-productive (rivers, glaciers or mountains).
The municipality is located in the Disentis sub-district of the Surselva district. It covers both sides of the Vorderrhein valley and the Val Sumvitg. It consists of the village of Sumvitg and the hamlets of Surrein, Rabius, Laus and Compadials as well as numerous farm houses. Until 1986 Sumvitg was known by its German name as Somvix.
Lag da Laus (Laus lake) is located above the hamlet of Laus.
Sumvitg has a population (as of 31 December 2014) of 1,240. As of 2008[update], 4.5% of the population was made up of foreign nationals. Over the last 10 years the population has decreased at a rate of -7.3%. Most of the population (as of 2000[update]) speaks Romansh(88.0%), with German being second most common (10.0%) and Italian being third ( 1.1%).
As of 2000[update], the gender distribution of the population was 49.1% male and 50.9% female. The age distribution in Sumvitg is; 192 children or 14.6% of the population are between 0 and 9 years old and 142 teenagers or 10.8% are between 10 and 19. Of the adult population, 84 people or 6.4% of the population are between 20 and 29 years old. 202 people or 15.4% are between 30 and 39, 143 people or 10.9% are between 40 and 49, and 160 people or 12.2% are between 50 and 59. The senior population distribution is 168 people or 12.8% of the population are between 60 and 69 years old, 149 people or 11.3% are between 70 and 79, there are 59 people or 4.5% who are between 80 and 89 there are 14 people or 1.1% who are between 90 and 99.
Sumvitg has an unemployment rate of 0.67%. As of 2005[update], there were 119 people employed in the primary economic sector and about 47 businesses involved in this sector. 139 people are employed in the secondary sector and there are 16 businesses in this sector. 178 people are employed in the tertiary sector, with 31 businesses in this sector.
From the 2000 census[update], 1,199 or 91.3% are Roman Catholic, while 35 or 2.7% belonged to the Swiss Reformed Church. Of the rest of the population, there are 15 individuals (or about 1.14% of the population) who belong to another Christian church. There are 4 individuals (or about 0.30% of the population) who belong to another church (not listed on the census), 14 (or about 1.07% of the population) belong to no church, are agnostic or atheist, and 46 individuals (or about 3.50% of the population) did not answer the question.
The historical population is given in the following table:
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