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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Delaware County, Ohio

Delaware County has an effective property tax rate of 1.60%. On the median home value of $445,500, that's roughly $7,132 per year. Median household income is $133,540.

Effective Property Tax Rate1
1.60%
median tax $7,132 ÷ median home $445,500
Median Home Value1
$445,500
owner-occupied
Median Household Income1
$133,540
per-capita $61,395
Est. Annual Tax on Median Home1
$7,132
at 1.60% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricDelaware CountyOhio (state context)
Effective property tax rate11.60%1.05%
Median home value1$445,500—
State income tax3top rate 2.75%top rate 2.75%
State sales tax37.29% combined7.29% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Delaware County, OH

Buying in Delaware County, Ohio means weighing a higher price tag against a steeper tax rate. The median home value sits at $445,500, and with an effective property tax rate of 1.601%, the median annual real-estate bill comes to $7,132. That rate tops the statewide median of 1.051% and ranks sixth among Ohio's 88 counties, so taxes here run well above what much of the state pays. Households earning the median $133,540 would devote roughly 5% of that income to property taxes. Communities like Westerville, Dublin, and Columbus anchor the county, drawing buyers who accept the premium. Compared with the national median rate of 0.794%, Delaware County sits near double, meaning affordability depends less on the tax rate itself and more on whether the area's incomes and amenities justify the added cost.

Frequently asked questions

What is the property tax rate in Delaware County, OH?
The effective rate is 1.60% — meaning the median tax bill equals about 1.60% of the median home value.
How much are property taxes on a median home?
On the median home ($445,500), the estimated annual bill is about $7,132.
Is Delaware County's rate high or low?
Compare it to the state median of 1.05% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Delaware County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Delaware County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.