Hazleton, IA -- U.S. city in Iowa Population (2000): 950 Housing Units (2000): 409 Land area (2000): 0.744291 sq. miles (1.927705 sq. km) Water area (2000): 0.038152 sq. miles (0.098814 sq. km) Total area (2000): 0.782443 sq. miles (2.026519 sq. km) FIPS code: 35580 Located within: Iowa (IA), FIPS 19 Location: 42.618317 N, 91.906646 W ZIP Codes (1990): 50641 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Hazleton, IA Hazleton