Median property tax bills in Boone County reached $4,944 in the fiscal year 2024, according to BlockShopper.com.
That represents an increase of 3.2% from $4,793 in the prior year.
Within the county, Loves Park had the highest median property tax bill at $9,010, while Garden Prairie had the lowest at $2,823.
Among the 22 counties with available data in Illinois, Kendall County recorded the highest median property tax bill at $7,751 in fiscal year 2024, while Vermilion County had the lowest at $1,325.
The median property tax bill in Boone County was equal to 2.2% of the median assessed home value in the county.
Complete real estate data was not available for some counties in Illinois. This analysis includes only those with complete records and may not reflect a full statewide comparison.
U.S. home prices continued to rise in 2025, with the national median reaching about $447,000 in June. That’s up 1.13% from a year earlier, according to Redfin. The data also show a significant gap in supply and demand, with 36% more sellers than buyers (a difference of 508,715 homes). By Redfin’s definition, a balanced market has seller and buyer numbers within 10% of each other.
Even when property tax rates decline or remain stable, homeowners can still face higher tax bills if home values rise. Property taxes are calculated based on both the tax rate and the assessed value of a property, meaning increases in home prices can expand the tax base and raise the amount owed even when local governments lower rates. In fact, the average effective property tax rate on a median-valued home in the largest city in each state fell by more than 5% from 2023 to 2024, according to a Lincoln Institute of Land Policy analysis.
At the same time, rising property values have increased the overall tax base in many areas. Because property taxes are tied to market value, higher home prices can lead to larger tax bills even if rates decline or remain unchanged. Studies of U.S. housing markets have also found that a 1% increase in median home value is associated with roughly a 0.71% decrease in the effective tax rate, reflecting how strong housing price growth can push rates lower while still allowing governments to collect more revenue.
| City | Median Property Tax Bill | Median Home Value | Effective Tax Rate |
|---|---|---|---|
| Loves Park | $9,010 | $392,500 | 2.3% |
| Timberlane | $8,294 | $382,000 | 2.2% |
| Caledonia | $6,604 | $299,900 | 2.2% |
| Poplar Grove | $6,052 | $319,000 | 1.9% |
| Belvidere | $4,838 | $214,950 | 2.3% |
| Candlewick Lake | $4,280 | $219,000 | 2% |
| Capron | $4,087 | $167,000 | 2.4% |
| Garden Prairie | $2,823 | $77,500 | 3.6% |
| County* | Median Property Tax Bill |
|---|---|
| Kendall County | $7,751 |
| McHenry County | $7,078 |
| Kane County | $6,963 |
| Cook County | $6,351 |
| Grundy County | $5,459 |
| Boone County | $4,944 |
| Kankakee County | $4,342 |
| Champaign County | $4,264 |
| Tazewell County | $3,356 |
| Clinton County | $3,103 |
| Lee County | $3,058 |
| Stephenson County | $2,859 |
| Whiteside County | $2,602 |
| Jersey County | $2,589 |
| Jackson County | $2,476 |
| Carroll County | $2,106 |
| Coles County | $2,021 |
| Knox County | $1,865 |
| Hancock County | $1,852 |
| Fulton County | $1,843 |
| Crawford County | $1,437 |
| Vermilion County | $1,325 |
*Only counties with complete property tax records are shown.
Information in this article was obtained from BlockShopper.com. The source data can be found here.
