Green River, UT -- U.S. city in Utah Population (2000): 973 Housing Units (2000): 376 Land area (2000): 12.514040 sq. miles (32.411213 sq. km) Water area (2000): 0.126196 sq. miles (0.326847 sq. km) Total area (2000): 12.640236 sq. miles (32.738060 sq. km) FIPS code: 31670 Located within: Utah (UT), FIPS 49 Location: 38.993258 N, 110.149961 W ZIP Codes (1990): 84525 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Green River, UT Green River