Illinois · FIPS 17095 · ACS 2020–2024
Knox County, Illinois property tax rate
Homeowners in Knox County paid a median of $2,190 a year in real estate taxes on a median home value of $111,900 (2020–2024 survey). Taxes came to 1.81% of home value, 3% below the Illinois rate of 1.88% and 93% above the U.S. rate of 0.94%.
- 1.81%Effective tax rate±0.16% margin · Illinois: 1.88%
- $2,190Median tax per yearIllinois: $5,298 · U.S.: $3,119
- $111,900Median home valueIllinois: $263,300
- 14,852Owner-occupied homes71% of households own
| Measure | Knox County | Illinois | U.S. | Knox County 2019–2023 | Change |
|---|---|---|---|---|---|
| Effective tax rate | 1.81% | 1.88% | 0.94% | 1.83% | −0.01 pts |
| Median tax, all owners | $2,190 | $5,298 | $3,119 | $2,044 | +$146 (+7.1%) |
| Median tax, with a mortgage | $2,451 | $5,833 | $3,489 | $2,257 | +$194 (+8.6%) |
| Median tax, no mortgage | $1,872 | $4,463 | $2,576 | $1,807 | +$65 (+3.6%) |
| Median home value | $111,900 | $263,300 | $332,700 | $104,900 | +$7,000 (+6.7%) |
| Total taxes paid | $40,584,800 | $20,991,766,400 | $360,573,527,500 | $36,943,300 |
How Knox County compares
- Per $1,000 of home value, owners here paid about $18.13 a year, against $18.76 statewide and $9.40 nationally.
- Rank in Illinois: 68 of 95 counties from lowest to highest effective rate (among those with reliable estimates). Nationally, 97% of 2,682 counties had a lower rate.
- Homes with a mortgage: 1.94% of value; homes without one: 1.69%. Median bills: $2,451 and $1,872.
- Compared with the 2019–2023 survey, the effective rate fell (−0.01 pts) and the median tax changed +$146 (+7.1%). The two 5-year surveys share four years of responses, so year-to-year moves are small and partly noise.
- Margin of error: the effective rate is 1.81% ± 0.16% at 90% confidence, from a sample of the 14,852 owner-occupied homes.
Illinois counties with similar rates
| County | Effective rate | Median tax | Median value |
|---|---|---|---|
| Bond County | 1.78% | $2,747 | $145,700 |
| Madison County | 1.79% | $3,319 | $173,000 |
| Mason County | 1.80% | $2,162 | $103,400 |
| Ogle County | 1.81% | $3,889 | $189,200 |
| McDonough County | 1.82% | $2,285 | $107,500 |
| St. Clair County | 1.83% | $3,665 | $180,300 |
| Ford County | 1.83% | $2,587 | $122,000 |
| Jackson County | 1.84% | $2,526 | $137,300 |
Sources
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table-based summary file: B25090 (aggregate real estate taxes), B25082 (aggregate home value), B25103 (median real estate taxes), B25077 (median home value) and B25003 (tenure); files dated January 29, 2026.
- U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, same tables (files dated October 31, 2024), for the comparison column.
- Geography names: Census Bureau Geos20245YR.txt (file dated January 22, 2026).
Effective rate = total real estate taxes paid by owner-occupied homes ÷ their total value, as reported by owners to the Census Bureau. It is not a millage rate. Your bill depends on your assessed value, exemptions (such as homestead) and local levies.