Westphalia, IA -- U.S. city in Iowa Population (2000): 160 Housing Units (2000): 64 Land area (2000): 0.090836 sq. miles (0.235265 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.090836 sq. miles (0.235265 sq. km) FIPS code: 84540 Located within: Iowa (IA), FIPS 19 Location: 41.719351 N, 95.394576 W ZIP Codes (1990): 51578 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Westphalia, IA Westphalia