Wynona, OK -- U.S. town in Oklahoma Population (2000): 531 Housing Units (2000): 246 Land area (2000): 0.540432 sq. miles (1.399712 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.540432 sq. miles (1.399712 sq. km) FIPS code: 82450 Located within: Oklahoma (OK), FIPS 40 Location: 36.545583 N, 96.325962 W ZIP Codes (1990): 74084 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Wynona, OK Wynona