Willow, OK -- U.S. town in Oklahoma Population (2000): 114 Housing Units (2000): 66 Land area (2000): 0.264673 sq. miles (0.685499 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.264673 sq. miles (0.685499 sq. km) FIPS code: 81300 Located within: Oklahoma (OK), FIPS 40 Location: 35.052527 N, 99.509531 W ZIP Codes (1990): 73673 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Willow, OK Willow