Lake County, IL Property Tax Rate
Homeowners in Lake County pay an effective 2.68% of home value in property tax — about $8,753 a year on the median $326,600 home, above the Illinois county median of 1.85%.
Lake County, IL: 2.68% effective property tax — ~$8,753/yr on the median home.
- Effective rate2.68%
- Median home value$326,600
- Median annual bill$8,753
- IL county median1.85%
- U.S. county median0.84%
Source: U.S. Census ACS 2023 5-year (median taxes paid ÷ median value), compiled June 2026.
Lake County vs. Illinois and the U.S.
| Effective rate | On the county's $326,600 median home | |
|---|---|---|
| Lake County | 2.68% | $8,753 |
| Illinois county median | 1.85% | $6,042 |
| U.S. county median | 0.84% | $2,743 |
Median household income here is $108,917, putting the median tax bill at about 8.0% of income. Effective rates fold in homestead exemptions and assessment practice — they're what owners actually pay, which is why they beat statutory rates for comparison.
Highest & lowest rates in Illinois
| County | Effective rate | Median bill |
|---|---|---|
| Lake County | 2.68% | $8,753 |
| DeKalb County | 2.54% | $5,890 |
| Kendall County | 2.53% | $7,562 |
| McHenry County | 2.49% | $7,144 |
| Pulaski County | 0.82% | $664 |
| Pope County | 1.02% | $1,686 |
| Hardin County | 1.18% | $1,082 |
| Lawrence County | 1.21% | $1,156 |
Full picture: Illinois property tax calculator · interactive county atlas · all county pages.
Frequently asked questions
What is the property tax rate in Lake County, IL?
The effective rate is about 2.68% of home value — the median homeowner pays roughly $8,753 a year on a $326,600 median home (ACS 2023 five-year data).
Is Lake County's property tax high?
It's above the Illinois county median (1.85%) and above the U.S. county median (0.84%).
How is the effective rate calculated?
Median real-estate taxes paid ÷ median home value, from the Census American Community Survey — what owners actually pay, after exemptions, rather than the statutory millage.
Sources & methodology
Sources: Census ACS 2023 5-year tables B25103/B25077.
Effective rate = median real-estate taxes ÷ median home value (owner-occupied). Individual bills vary with exemptions, assessment timing and local levies — verify with the county assessor.