Optima, OK -- U.S. town in Oklahoma Population (2000): 266 Housing Units (2000): 97 Land area (2000): 0.431404 sq. miles (1.117330 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.431404 sq. miles (1.117330 sq. km) FIPS code: 55850 Located within: Oklahoma (OK), FIPS 40 Location: 36.759142 N, 101.354375 W ZIP Codes (1990): 73945 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Optima, OK Optima