Property tax in Illinois
Overview
Across 102 Illinois counties, the average effective property-tax rate is about 1.8% (range 0.96%–2.58%). Confidence: Medium (county-level ACS estimates).
Data as of 2024-12-31 (data version 2024.1). Sources: U.S. Census Bureau, American Community Survey (ACS) 5-year, table B25103; U.S. Census Bureau, American Community Survey (ACS) 5-year, table B25077.
The 2022 NAIC HO-3 state average is $1,343/yr. County insurance pages adjust this historical baseline for home value and FEMA risk; confidence is Low. Compare total monthly carrying costs in Illinois.
Key county estimates in Illinois
Start with these larger or higher-value county pages, then use the full table for the rest of the published Illinois launch wave.
- DuPage County: 2.05% effective rate; $8,007/yr typical tax on the county median home
- Lake County: 2.58% effective rate; $8,923/yr typical tax on the county median home
- Kane County: 2.26% effective rate; $7,382/yr typical tax on the county median home
- Cook County: 1.91% effective rate; $6,191/yr typical tax on the county median home
- Kendall County: 2.37% effective rate; $7,651/yr typical tax on the county median home
- Will County: 2.24% effective rate; $7,173/yr typical tax on the county median home
- McHenry County: 2.36% effective rate; $7,274/yr typical tax on the county median home
- Monroe County: 1.63% effective rate; $4,588/yr typical tax on the county median home