Tiskilwa, IL -- U.S. village in Illinois Population (2000): 787 Housing Units (2000): 336 Land area (2000): 0.479075 sq. miles (1.240798 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.479075 sq. miles (1.240798 sq. km) FIPS code: 75549 Located within: Illinois (IL), FIPS 17 Location: 41.291664 N, 89.506462 W ZIP Codes (1990): 61368 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tiskilwa, IL Tiskilwa