McHenry County, Illinois: Property Tax Rates
The range across 15 places
Lowest
6.269%
Median
7.669%
Highest
9.098%
Composite rate, as a percent of assessed value, from the published 2024 rates. Illinois taxes a home at a third of its market value: the bill is the assessed value times the composite rate, which adds up every taxing district on the property (county, township, municipality, school, park, library and others). The effective rate on market value is about a third of the composite rate. The State's equalization factor for McHenry County is 1; it adjusts assessed values to a common level. Each place shows its most common tax code; a place with several tax codes has a range, so check the address.
Every place, side by side
| Place | Composite rate | Effective rate on market value | School district |
|---|---|---|---|
| Algonquin | 7.698% | 2.57% | Unit SD 300 |
| Cary | 8.021% | 2.67% | SD 26/155 |
| Crystal Lake | 8.037% | 2.68% | SD 47/155 |
| Fox River Grove | 9.098% | 3.03% | SD 3/155 |
| Huntley | 6.770% | 2.26% | Unit SD 158 |
| Island Lake | 8.335% | 2.78% | SD 15/156 |
| Johnsburg | 6.657% | 2.22% | Unit SD 12 |
| Lake in the Hills | 6.943% | 2.31% | Unit SD 158 |
| Marengo | 7.221% | 2.41% | SD 165/154 |
| McHenry | 8.004% | 2.67% | SD 15/156 |
| Richmond | 7.669% | 2.56% | SD 2/157 |
| Spring Grove | 7.263% | 2.42% | SD 2/157 |
| Union | 6.269% | 2.09% | SD 165/154 |
| Wonder Lake | 7.363% | 2.45% | SD 36/156 |
| Woodstock | 8.687% | 2.90% | Unit SD 200 |
Keep exploring
A county rate is a starting point. A full report works out the bill for a specific address, after a sale, with the valuation behind it.
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