Cook, https://www.cookcountypropertyinfo.com/

DuPage, https://www.dupagecounty.gov/PropertyInfo/PropertyLookup.aspx

Kane, https://kaneil.devnetwedge.com/

McHenry, https://www.mchenrycountyil.gov/county-government/departments-j-z/treasurer

Lake, https://www.lakecountyil.gov/199/Property-Taxes

Will, http://www.willcountysoa.com/section/Property-Search-Portal

Kendall, https://kendallil.devnetwedge.com/

DeKalb, https://dekalbcounty.org/departments/treasurer-collector/view-property-tax-information/