Freeport, IL -- U.S. city in Illinois Population (2000): 26443 Housing Units (2000): 12471 Land area (2000): 11.413178 sq. miles (29.559994 sq. km) Water area (2000): 0.010311 sq. miles (0.026706 sq. km) Total area (2000): 11.423489 sq. miles (29.586700 sq. km) FIPS code: 27884 Located within: Illinois (IL), FIPS 17 Location: 42.292003 N, 89.630377 W ZIP Codes (1990): 61032 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Freeport, IL Freeport