Long, OK -- U.S. Census Designated Place in Oklahoma Population (2000): 363 Housing Units (2000): 140 Land area (2000): 7.647521 sq. miles (19.806988 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 7.647521 sq. miles (19.806988 sq. km) FIPS code: 43900 Located within: Oklahoma (OK), FIPS 40 Location: 35.499104 N, 94.563038 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Long, OK Long