Sullivan County, IN Property Taxes (2026)

Sullivan County owners pay a median of $825 a year on a median home value of $122,200, an effective rate of 0.68%. That's the 47th-highest rate of 92 Indiana counties with Census data, below the Indiana county median of 0.68%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

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Effective tax rate

0.68%

47th highest of 92 in IN

Median annual bill

$825

~$69/month

Median home value

$122,200

Indiana county median

0.68%

Effective rate

What a protest could save you in Sullivan County

Enter the market value from your appraisal notice. We apply Sullivan County's 0.68% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$831
Savings at 10–15% off
$83–$125
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Sullivan County vs. Indiana vs. U.S. property tax rates

Sullivan County0.68%
Indiana county median0.68%
U.S. county median0.84%

Key stat: Sullivan County's effective property tax rate is 0.68%, vs. 0.68% for the median Indiana county and 0.84% for the median U.S. county. It ranks 47th of 92 in Indiana. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in Sullivan County

  1. 1

    Review your assessment notice

    Check the assessed value from the Sullivan County Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Sullivan County deadline is June 15 or 45 days after notice. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the County Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $825 bill, 10–15% off is $83–$124 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Indiana

Indiana homeowners may qualify for exemptions that reduce taxable value. Check with the Sullivan County Assessor for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in Sullivan County, Indiana?
The median effective property tax rate in Sullivan County is 0.68%: a median annual bill of $825 on a median home value of $122,200. That's the 47th-highest rate of 92 Indiana counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in Sullivan County?
The median Sullivan County property tax bill is $825 a year, about $69 a month, compared with a Indiana county median of $1,106.
What is the deadline to appeal property taxes in Sullivan County?
The deadline to appeal in Sullivan County is June 15 or 45 days after notice. Missing it means waiting until the next assessment cycle.
Is Sullivan County a high property tax area?
Sullivan County's 0.68% effective rate is below the Indiana county median of 0.68% and below the U.S. county median of 0.84%. That's the 47th-highest rate of 92 Indiana counties with Census data.
Can TaxDrop help lower my Sullivan County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Greene County

Rate: 0.69%

Median bill: $895

Vigo County

Rate: 0.89%

Median bill: $1,256

Clay County

Rate: 0.46%

Median bill: $589

Knox County

Rate: 0.72%

Median bill: $895

Daviess County

Rate: 0.68%

Median bill: $1,276

Owen County

Rate: 0.67%

Median bill: $1,091

Martin County

Rate: 0.53%

Median bill: $798

Monroe County

Rate: 0.70%

Median bill: $1,837

← All 92 Indiana counties

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