Sumner County, KS Property Tax: $2,024/yr (2026)
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The effective property tax rate in Sumner County is 1.71% of assessed home value. On a home at the county median value of $118,700, that works out to about $2,030 per year, or $169 per month. Sumner County is located in southern Kansas, and is home to approximately 22,386 residents.
About Sumner County
Sumner County covers approximately 1,181.7 square miles in Kansas. The county is home to about 22,386 residents living in roughly 10,395 housing units, of which 64.2% are owner-occupied. The median household income is $60,348, and the median home was built in 1966.
Sumner County borders Butler County, Cowley County, Harper County, Kingman County, Sedgwick County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Kansas
Property taxes in Kansas are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Kansas offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Sumner County Assessor's office to learn which exemptions apply to your property and when to file.
Sumner County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Sumner County, KS | 1.71% | $118,700 | $2,030 |
| Kansas state average | 1.55% | — | $1,840* |
| Butler County | 1.46% | $199,600 | $2,918 |
| Cowley County | 1.68% | $111,600 | $1,878 |
| Harper County | 1.78% | $77,300 | $1,379 |
| Kingman County | 1.78% | $107,400 | $1,916 |
| Sedgwick County | 1.23% | $190,700 | $2,345 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Sumner County's median home value of $118,700. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Sumner County's property tax rate compare to the rest of Kansas?
At 1.71%, Sumner County is higher than the Kansas state average of 1.55%. On a home at the county median of $118,700, that means about $2,030 per year — versus $1,840 at the state average rate, a difference of $190 per year. Compared to the national average of 1.10%, Sumner County is above average.
What's a typical annual property tax bill in Sumner County?
For a home at the county median value of $118,700, the annual property tax in Sumner County is approximately $2,030 — or about $169 per month. For a home worth $178,050, expect around $3,045 per year. For a $237,400 home, approximately $4,060 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Sumner County property tax assessment?
Property assessment appeals in Sumner County are handled by the Sumner County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Sumner County?
Kansas counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.71% shown here. Contact the Sumner County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File