Coverage/Illinois

Free Illinois property owner data,
9 counties covered

Chicagoland and Rockford are covered — Cook County (every Chicago property with address, building size, and sale records; Cook doesn't publish owner names, so the owner is revealed on enrichment) plus DuPage, Lake, Kane, McHenry, Winnebago (Rockford), Peoria, Madison, and St. Clair (Metro East) counties with owner names straight from county records — Peoria adds beds, baths, and year built. Cook's assessment ratios (10–25% of market) make its published values misleading, so we don't show them. More Illinois counties on the way. Pick a county below, draw an area on the map, and see every property owner inside it — free.