Lexington, MO -- U.S. city in Missouri Population (2000): 4453 Housing Units (2000): 2015 Land area (2000): 3.479682 sq. miles (9.012335 sq. km) Water area (2000): 0.178204 sq. miles (0.461545 sq. km) Total area (2000): 3.657886 sq. miles (9.473880 sq. km) FIPS code: 41870 Located within: Missouri (MO), FIPS 29 Location: 39.183060 N, 93.875070 W ZIP Codes (1990): 64067 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lexington, MO Lexington