Sioux Center, IA -- U.S. city in Iowa Population (2000): 6002 Housing Units (2000): 1933 Land area (2000): 5.288364 sq. miles (13.696800 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 5.288364 sq. miles (13.696800 sq. km) FIPS code: 73290 Located within: Iowa (IA), FIPS 19 Location: 43.076546 N, 96.173214 W ZIP Codes (1990): 51250 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Sioux Center, IA Sioux Center