O'Kean, AR -- U.S. town in Arkansas Population (2000): 201 Housing Units (2000): 93 Land area (2000): 1.002314 sq. miles (2.595982 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.002314 sq. miles (2.595982 sq. km) FIPS code: 51500 Located within: Arkansas (AR), FIPS 05 Location: 36.167956 N, 90.815846 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: O'Kean, AR O'Kean