Ashton, IA -- U.S. city in Iowa Population (2000): 461 Housing Units (2000): 212 Land area (2000): 1.005239 sq. miles (2.603556 sq. km) Water area (2000): 0.005306 sq. miles (0.013743 sq. km) Total area (2000): 1.010545 sq. miles (2.617299 sq. km) FIPS code: 03295 Located within: Iowa (IA), FIPS 19 Location: 43.311916 N, 95.791613 W ZIP Codes (1990): 51232 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ashton, IA Ashton