Gunnison, CO -- U.S. city in Colorado Population (2000): 5409 Housing Units (2000): 2276 Land area (2000): 3.210825 sq. miles (8.315999 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.210825 sq. miles (8.315999 sq. km) FIPS code: 33640 Located within: Colorado (CO), FIPS 08 Location: 38.545838 N, 106.931562 W ZIP Codes (1990): 81230 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gunnison, CO Gunnison