Holyoke, CO -- U.S. city in Colorado Population (2000): 2261 Housing Units (2000): 980 Land area (2000): 1.738799 sq. miles (4.503468 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.738799 sq. miles (4.503468 sq. km) FIPS code: 37270 Located within: Colorado (CO), FIPS 08 Location: 40.582002 N, 102.301056 W ZIP Codes (1990): 80734 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Holyoke, CO Holyoke