Hamilton County, OH Property Tax: $3,461/yr (2026)
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The effective property tax rate in Hamilton County is 1.53% of assessed home value. On a home at the county median value of $225,700, that works out to about $3,453 per year, or $288 per month. Hamilton County is located in southwestern Ohio, and is home to approximately 827,878 residents.
About Hamilton County
Hamilton County covers approximately 405.5 square miles in Ohio. The county is home to about 827,878 residents living in roughly 380,414 housing units, of which 54.6% are owner-occupied. The median household income is $70,816, and the median home was built in 1963.
Hamilton County borders Dearborn County, Franklin County, Boone County, Campbell County, Kenton County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Ohio
Property taxes in Ohio 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 Ohio 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 Hamilton County Assessor's office to learn which exemptions apply to your property and when to file.
Hamilton County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Hamilton County, OH | 1.53% | $225,700 | $3,453 |
| Ohio state average | 1.15% | — | $2,596* |
| Dearborn County | 0.76% | $227,100 | $1,726 |
| Franklin County | 0.62% | $236,700 | $1,459 |
| Boone County | 0.90% | $253,200 | $2,273 |
| Campbell County | 1.06% | $234,500 | $2,495 |
| Kenton County | 1.00% | $227,500 | $2,284 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Hamilton County's median home value of $225,700. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Hamilton County's property tax rate compare to the rest of Ohio?
At 1.53%, Hamilton County is higher than the Ohio state average of 1.15%. On a home at the county median of $225,700, that means about $3,453 per year — versus $2,596 at the state average rate, a difference of $857 per year. Compared to the national average of 1.10%, Hamilton County is above average.
What's a typical annual property tax bill in Hamilton County?
For a home at the county median value of $225,700, the annual property tax in Hamilton County is approximately $3,453 — or about $288 per month. For a home worth $338,550, expect around $5,180 per year. For a $451,400 home, approximately $6,906 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Hamilton County property tax assessment?
Property assessment appeals in Hamilton County are handled by the Hamilton 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 Hamilton County?
Ohio 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 1.53% shown here. Contact the Hamilton 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