Marietta, OK -- U.S. city in Oklahoma Population (2000): 2445 Housing Units (2000): 1094 Land area (2000): 2.375547 sq. miles (6.152639 sq. km) Water area (2000): 0.009626 sq. miles (0.024932 sq. km) Total area (2000): 2.385173 sq. miles (6.177571 sq. km) FIPS code: 46500 Located within: Oklahoma (OK), FIPS 40 Location: 33.935551 N, 97.119867 W ZIP Codes (1990): 73448 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marietta, OK Marietta