Homeowners in Big Rock, Kane County, pay about 2.16% of their home's value in property tax each year. The median bill is $7,655.
At Big Rock's typical rate of 2.16%. Exemptions lower the real bill.
| Home value | Property tax (estimate) |
|---|---|
| $250,000 | $5,402 |
| $350,000 | $7,563 |
| $450,000 | $9,723 |
| $600,000 | $12,965 |
| $800,000 | $17,286 |
A family with a $337,900 home in Big Rock pays about $7,301 in property tax. With $120,000 of income they also pay about $5,940 in Illinois income tax, so their SALT deduction is $13,241 — under the $40,400 cap. That alone does not beat the $32,200 standard deduction for married couples; mortgage interest and charity decide the rest.
| Town | County | Rate | Median bill |
|---|---|---|---|
| Sugar Grove | Kane | 2.35% | $9,221 |
| Prestbury | Kane | 2.01% | $8,221 |
| Elburn | Kane | 1.73% | $8,761 |
| North Aurora | Kane | 2.24% | $7,790 |
| Montgomery | Kane | 2.28% | $7,183 |
| Batavia | Kane | 2.29% | $8,963 |
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Unofficial estimate, not a tax bill. Updated 2026-10-08.
Homeowners in Big Rock pay a typical effective property tax rate of 2.16% of home value per year. The median annual bill is $7,655 and the median home value is $337,900 (U.S. Census ACS 2020–2024).
About $8,643 per year at Big Rock's typical rate of 2.16%. The homeowner exemption and other exemptions lower the actual bill.
Big Rock's typical rate of 2.16% is about the same as the Kane County average of 2.18%.
Yes, if you itemize. For 2026, property tax plus Illinois income tax count toward the SALT deduction, capped at $40,400 ($20,200 if married filing separately) and reduced above $505,000 of income. Itemizing helps only if your total deductions beat the standard deduction: $32,200 married filing jointly, $16,100 single, $24,150 head of household.
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