Avant, OK -- U.S. town in Oklahoma Population (2000): 372 Housing Units (2000): 164 Land area (2000): 0.353989 sq. miles (0.916828 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.353989 sq. miles (0.916828 sq. km) FIPS code: 03500 Located within: Oklahoma (OK), FIPS 40 Location: 36.488660 N, 96.061403 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Avant, OK Avant