In December 2013, he was named as one of the 100 most influential Africans of 2013 by New African magazine, with the citation: "It has been a coming of age for Kumla Dumor this year. The presenter of Focus on Africa, the BBC's flagship and first-ever dedicated daily TV news programme in English for African audiences, broadcast on BBC World News, has established himself as one of the emerging African faces of global broadcasting. As a lead presenter for BBC World, Dumor has considerable influence on how the continent is covered."
At the time of his death, Dumor was the only West Africannewsreader on BBC World News. In the words of BBC Radio 4Today and BBC News presenter Mishal Husain, "Komla developed his own unique on air style, seamlessly moved between TV and radio and influenced Africa coverage across the BBC." He was also described by Peter Horrocks, the BBC's global news director, as "a leading light of African journalism – committed to telling the story of Africa as it really is."
Dumor died on 18 January 2014 in his London home after a cardiac arrest, having been on air the day before.President of GhanaJohn Mahama said in a message on Twitter that Dumor was one of Ghana's "finest ambassadors" and "was a broadcaster of exceptional quality and Ghana's gift to the world."
On 3 February 2014 Komla Dumor's body was flown back to Ghana, where it was received at Kotoka International Airport by a group of family members, friends, government officials, sympathizers and members of the Aflao traditional council, who also performed some traditional rites, since Aflao was his hometown. Funeral ceremonies for Dumor were held 21–23 February 2014 in Accra.
At the 2014 African Achievers Awards Dumor was honoured with a posthumous award for Excellence in Broadcasting.
Honouring Dumor's legacy, in 2015, the BBC launched the BBC World News Komla Dumor Award, presented each year "to an outstanding individual living and working in Africa, who combines strong journalism skills, on air flair, and an exceptional talent in telling African stories with the ambition and potential to become a star of the future." The winner is given a three-month training and development contract in BBC News.