Muddy, IL -- U.S. village in Illinois Population (2000): 78 Housing Units (2000): 39 Land area (2000): 0.262714 sq. miles (0.680427 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.262714 sq. miles (0.680427 sq. km) FIPS code: 51271 Located within: Illinois (IL), FIPS 17 Location: 37.764086 N, 88.514469 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Muddy, IL Muddy