Kaskaskia, IL -- U.S. village in Illinois Population (2000): 9 Housing Units (2000): 5 Land area (2000): 0.108458 sq. miles (0.280905 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.108458 sq. miles (0.280905 sq. km) FIPS code: 39129 Located within: Illinois (IL), FIPS 17 Location: 37.921395 N, 89.916467 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Kaskaskia, IL Kaskaskia