Atqasuk is a city in North Slope Borough, Alaska, United States. The population was 276 at the 2020 census, and 233 as of the 2010 cens…Atqasuk is a city in North Slope Borough, Alaska, United States. The population was 276 at the 2020 census, and 233 as of the 2010 census. Atqasuk is located at 70°28′40″N 157°25′05″W / 70.47778°N 157.41806°W, on the Meade River.