Oaktown, IN -- U.S. town in Indiana Population (2000): 633 Housing Units (2000): 286 Land area (2000): 0.281280 sq. miles (0.728513 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.281280 sq. miles (0.728513 sq. km) FIPS code: 55800 Located within: Indiana (IN), FIPS 18 Location: 38.871331 N, 87.440163 W ZIP Codes (1990): 47561 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Oaktown, IN Oaktown