Fort Yukon is a city in the Yukon-Koyukuk Census Area in the U.S. state of Alaska, straddling the Arctic Circle. The population, predominantly Gwich'in Alaska Natives, was 428 at the 2020 census, down from 595 in 2000. Fort Yukon was the hometown of the late Alaska Congressman Don Young. Served by Fort Yukon Airport, it is also known for having the record highest temperature in Alaska.