'Koyukuk' definitions:

Koyukuk, AK -- U.S. city in Alaska

From: Gazetteer 2000
Name :
Koyukuk, AK -- U.S. city in Alaska
Population (2000) :
101
Housing Units (2000) :
55
Land area (2000) :
6.238502 sq. miles (16.157646 sq. km)
Water area (2000) :
0.044261 sq. miles (0.114635 sq. km)
Total area (2000) :
6.282763 sq. miles (16.272281 sq. km)
FIPS code :
42050
Located within :
Alaska (AK), FIPS 02
Location :
64.881745 N, 157.704393 W
Note :
some ZIP codes may be omitted esp. for suburbs.