Holstein, IA -- U.S. city in Iowa Population (2000): 1470 Housing Units (2000): 674 Land area (2000): 1.446875 sq. miles (3.747389 sq. km) Water area (2000): 0.009199 sq. miles (0.023826 sq. km) Total area (2000): 1.456074 sq. miles (3.771215 sq. km) FIPS code: 36840 Located within: Iowa (IA), FIPS 19 Location: 42.486794 N, 95.542565 W ZIP Codes (1990): 51025 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Holstein, IA Holstein