Eldon, OK -- U.S. Census Designated Place in Oklahoma Population (2000): 991 Housing Units (2000): 387 Land area (2000): 18.446164 sq. miles (47.775343 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 18.446164 sq. miles (47.775343 sq. km) FIPS code: 23300 Located within: Oklahoma (OK), FIPS 40 Location: 35.930319 N, 94.844083 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Eldon, OK Eldon