Greenfield, MO -- U.S. city in Missouri Population (2000): 1358 Housing Units (2000): 731 Land area (2000): 1.099614 sq. miles (2.847986 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.099614 sq. miles (2.847986 sq. km) FIPS code: 29206 Located within: Missouri (MO), FIPS 29 Location: 37.415340 N, 93.842781 W ZIP Codes (1990): 65661 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Greenfield, MO Greenfield