Buffalo, MO -- U.S. city in Missouri Population (2000): 2781 Housing Units (2000): 1367 Land area (2000): 2.198167 sq. miles (5.693226 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.198167 sq. miles (5.693226 sq. km) FIPS code: 09514 Located within: Missouri (MO), FIPS 29 Location: 37.643582 N, 93.094529 W ZIP Codes (1990): 65622 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Buffalo, MO Buffalo