McLeansboro, IL -- U.S. city in Illinois Population (2000): 2945 Housing Units (2000): 1444 Land area (2000): 2.289506 sq. miles (5.929792 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.289506 sq. miles (5.929792 sq. km) FIPS code: 45824 Located within: Illinois (IL), FIPS 17 Location: 38.093115 N, 88.536213 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: McLeansboro, IL McLeansboro