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Illinois · FIPS 17007 · ACS 2020–2024

Boone County, Illinois property tax rate

Homeowners in Boone County paid a median of $4,735 a year in real estate taxes on a median home value of $216,900 (2020–2024 survey). Taxes came to 1.99% of home value, 6% above the Illinois rate of 1.88% and 112% above the U.S. rate of 0.94%.

  • 1.99%Effective tax rate±0.17% margin · Illinois: 1.88%
  • $4,735Median tax per yearIllinois: $5,298 · U.S.: $3,119
  • $216,900Median home valueIllinois: $263,300
  • 15,915Owner-occupied homes82% of households own

Estimate your property tax

Rate defaults to the Boone County effective rate. Results update as you type and stay in your browser.

Default: the local median home value, rounded.

Default: Boone County average. Your last tax bill ÷ your home’s market value gives your own rate.

Estimated tax at this rate$4,326/year
The same home value at each average rate
RateEffective ratePer yearPer month
Boone County average1.99%$4,326$361
Illinois average1.88%$4,071$339
U.S. average0.94%$2,039$170
Property taxes in Boone County: 2020–2024 compared with Illinois, the U.S. and 2019–2023
MeasureBoone CountyIllinoisU.S.Boone County 2019–2023Change
Effective tax rate1.99%1.88%0.94%2.06%−0.06 pts
Median tax, all owners$4,735$5,298$3,119$4,507+$228 (+5.1%)
Median tax, with a mortgage$4,815$5,833$3,489$4,645+$170 (+3.7%)
Median tax, no mortgage$4,428$4,463$2,576$4,008+$420 (+10.5%)
Median home value$216,900$263,300$332,700$198,600+$18,300 (+9.2%)
Total taxes paid$81,610,200$20,991,766,400$360,573,527,500$78,380,400

How Boone County compares

  • Per $1,000 of home value, owners here paid about $19.94 a year, against $18.76 statewide and $9.40 nationally.
  • Rank in Illinois: 82 of 95 counties from lowest to highest effective rate (among those with reliable estimates). Nationally, 98% of 2,682 counties had a lower rate.
  • Homes with a mortgage: 2.08% of value; homes without one: 1.87%. Median bills: $4,815 and $4,428.
  • Compared with the 2019–2023 survey, the effective rate fell (−0.06 pts) and the median tax changed +$228 (+5.1%). 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 1.99% ± 0.17% at 90% confidence, from a sample of the 15,915 owner-occupied homes.

Illinois counties with similar rates

Closest effective property tax rates in Illinois, 2020–2024
CountyEffective rateMedian taxMedian value
DuPage County1.89%$8,007$391,400
Woodford County1.90%$4,215$197,600
LaSalle County1.90%$3,418$161,900
Tazewell County1.98%$3,536$167,500
Macon County1.99%$2,696$127,300
Kankakee County2.04%$4,266$192,600
Champaign County2.04%$4,353$211,500
Stephenson County2.09%$3,240$134,900

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.

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