Koyuk is a city in the Nome Census Area, Alaska, United States. The population was 332 at the 2010 census, up from 297 in 2000. Koyuk i…Koyuk is a city in the Nome Census Area, Alaska, United States. The population was 332 at the 2010 census, up from 297 in 2000. Koyuk is located at 64°55′52″N 161°9′31″W / 64.93111°N 161.15861°W. The village is located on the northern bank of the Koyuk River where it drains into Norton Bay.