Union County property tax, in one number.
The typical Union County homeowner pays $3,947 a year on a $344,900 home. That's below the Ohio rate (1.31%) and above the U.S. rate (0.94%).
Estimate my taxUnion County at a glance
Five numbers that shape a typical property tax bill here.
Property tax calculator
Enter a home value to see a typical yearly bill at Union County's average effective rate, or pick another area.
- 31st highest rate in Ohio.Out of 88 Ohio counties with full data. Nationally, the rate is higher than in 74% of U.S. counties.
- Mortgage holders pay more.Homes with a mortgage paid a median $3,993, versus $3,761 for homes owned outright, often because they're newer, higher-value or more recently reassessed.
- Share of income.The median bill equals about 3.5% of the median household income of $112,322.
The data, charted
Effective rate compared
Owners vs renters
Neighboring counties
Largest Ohio counties
| County | Median tax | Rate |
|---|---|---|
| Cuyahoga County | $3,910 | 2.00% |
| Summit County | $3,195 | 1.53% |
| Hamilton County | $3,652 | 1.51% |
| Franklin County | $4,244 | 1.47% |
| Union County | $3,947 | 1.14% |
| Ohio | $2,822 | 1.31% |
Compare neighboring counties
Effective property tax rates in and around Union County.
Cities and towns in Union County
Places with at least 2,000 owner-occupied homes and reliable survey data.
- Marysville1.17% · $3,510
Good to know
What is the property tax rate in Union County?
The effective rate is about 1.14%. The median homeowner pays $3,947 a year on a home worth a median $344,900 (ACS 2020–2024). The legal tax rates set by each taxing unit are different numbers; the effective rate is what owners actually pay as a share of value.
How much is property tax on a $350,000 home in Union County?
About $3,990 a year, or roughly $332 a month, at Union County's average effective rate of 1.14%. Homestead, senior, veteran or other exemptions can lower the real bill, and a recent purchase or reassessment can raise it.
Why is my bill different from this estimate?
Your bill depends on your home's assessed value from the county assessor, the exact taxing units where you live (county, city, school district, special districts) and any exemptions you get. These figures are medians across all owner-occupied homes, not a bill for any address.
How current is this data?
It comes from the U.S. Census Bureau's American Community Survey 5-year estimates for 2020–2024, the latest release. Homeowners report the taxes they paid, so the numbers lag current bills by one to two years. We update the site when the Census Bureau publishes new estimates each December.
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