Wales is a city in the Nome Census Area, Alaska, United States. At the 2010 census the population was 145, down from 152 in 2000. It is th…Wales is a city in the Nome Census Area, Alaska, United States. At the 2010 census the population was 145, down from 152 in 2000. It is the westernmost city on the North American mainland, although Adak, located on Adak Island, is the westernmost city in Alaska. Wales Airport serves Wales with flights on Bering Air and Ravn Alaska to Nome.