Property tax in Knox County, Indiana

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Knox County, Indiana is $933 a year, which is about 0.68% of the county's median home value of $137,700. That effective rate is higher than the typical Indiana county (0.66%) and lower than the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.

Estimate the property tax on a home in Knox County

Enter a home's market value for a ballpark at Knox County's average effective rate of 0.68% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.

Home market value

Estimated property tax: $936 / year

Property tax in Knox County at a glance

Knox County, Indiana property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$933
Median home value	$137,700
Effective tax rate	0.68%
Typical Indiana county rate	0.66%
National median county rate	0.81%

Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.

How does Knox County compare in Indiana?

Among Indiana's 92 counties, Knox County has the 39th highest effective property-tax rate: 38 rank higher and 53 rank lower. That is near the middle for Indiana. Nationally, it ranks 1953rd of 3135 US counties by effective rate. See every Indiana county ranked.

How much do homeowners in Knox County actually pay?

The median is only the middle bill. Across Knox County's 10,285 owner-occupied homes, 9.2% pay $3,000 or more a year in property tax, 18.6% pay at least $2,000, and 43% pay under $800. Another 4% report paying no property tax at all, which usually means an exemption covers the whole bill.

Annual property tax paid by Knox County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	4,419	43%
$800 to $1,499	2,499	24.3%
$1,500 to $1,999	1,029	10%
$2,000 to $2,999	971	9.4%
$3,000 or more	951	9.2%
No property tax paid	416	4%

Owners with a mortgage pay a median of $1,132 and owners without one pay $740. Owners who have paid off a home have usually held it longer, and in states that cap how fast an existing owner's assessment can rise, long-held homes carry lower assessed values. Census table B25103.

How does the Knox County property tax bill compare with local incomes?

The median property tax bill of $933 is about 1.2% of the median income of Knox County homeowner households, $76,933 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 67.8% of Knox County's occupied homes are lived in by their owners; renters pay property tax too, just folded into rent.

Have property taxes gone up in Knox County?

Yes. The median bill went from $758 in 2015-2019 to $933 in 2020-2024, a 23.1% rise. Over the same span the median home value moved 42.3%, from $96,800 to $137,700. Bills rose more slowly than values, which is what assessment caps and falling millage rates do: the county is taxing a smaller share of each home's worth.

Two Census ACS 5-year periods with no survey years in common, in each period's own dollars. A change counts only if it exceeds the combined 90% margin of error.

Property tax in counties next to Knox County

Knox County borders 8 counties, 3 of them across the state line.

Knox County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
Crawford County, IL	1.49%	$1,806	$121,100
Wabash County, IL	1.41%	$1,475	$104,900
Lawrence County, IL	1.18%	$1,174	$99,100
Pike County, IN	0.78%	$1,206	$154,900
Gibson County, IN	0.72%	$1,301	$180,000
Daviess County, IN	0.69%	$1,351	$197,200
Knox County, IN (this county)	0.68%	$933	$137,700
Sullivan County, IN	0.61%	$799	$131,100
Greene County, IN	0.58%	$896	$153,200

How is a home assessed in Knox County?

Indiana assesses homes at 100% of market value in every county, Knox County included. How Indiana assesses and reappraises homes.

Is there a homestead exemption in Knox County?

Yes, but it is shrinking. Indiana's homestead standard deduction is $40,000 for assessment year 2026 and reaches $0 from 2030; a bill paid in 2026 reflects the $48,000 figure. That is the Indiana rule, and it applies in Knox County. Indiana's exemptions and relief programs in full.

When are property taxes due in Knox County?

Two installments, customarily due May 10 and November 10 of the year after the January 1 assessment, moving to the next business day when they fall on a weekend. One statement covering both is mailed in spring. Late payment costs 5% within 30 days, 10% after.

Indiana splits the bill into 2 installments. That is the Indiana rule. Knox County issues and collects the bill, so the dates printed on your statement are the ones that bind you.

How to appeal your Knox County property assessment

You contest the assessed value with the County or township assessor, then the Property Tax Assessment Board of Appeals, then the Indiana Board of Tax Review. The filing deadline is typically June 15 of the assessment year if your Form 11 notice was mailed before May 1, otherwise June 15 of the year the bill was mailed. That is the Indiana rule; Knox County sets the exact dates and forms. The Indiana appeal process step by step.

Indiana rules from primary state sources, reviewed September 7, 2026; sources on the Indiana page.

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Knox County, Indiana: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.