McClain County, OK Property Tax: $1,868/yr (2026)
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The effective property tax rate in McClain County is 0.80% of assessed home value. On a home at the county median value of $233,900, that works out to about $1,871 per year, or $156 per month. McClain County is located in central Oklahoma, and is home to approximately 43,779 residents.
About McClain County
McClain County covers approximately 570.7 square miles in Oklahoma. The county is home to about 43,779 residents living in roughly 17,125 housing units, of which 73.4% are owner-occupied. The median household income is $84,778, and the median home was built in 1996.
McClain County borders Canadian County, Cleveland County, Garvin County, Grady County, Pontotoc County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Oklahoma
Property taxes in Oklahoma 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 Oklahoma 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 McClain County Assessor's office to learn which exemptions apply to your property and when to file.
McClain County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| McClain County, OK | 0.80% | $233,900 | $1,871 |
| Oklahoma state average | 0.65% | — | $1,520* |
| Canadian County | 0.98% | $230,300 | $2,259 |
| Cleveland County | 1.03% | $222,800 | $2,288 |
| Garvin County | 0.57% | $132,600 | $750 |
| Grady County | 0.70% | $187,900 | $1,321 |
| Pontotoc County | 0.63% | $170,500 | $1,067 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at McClain County's median home value of $233,900. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does McClain County's property tax rate compare to the rest of Oklahoma?
At 0.80%, McClain County is higher than the Oklahoma state average of 0.65%. On a home at the county median of $233,900, that means about $1,871 per year — versus $1,520 at the state average rate, a difference of $351 per year. Compared to the national average of 1.10%, McClain County is below average.
What's a typical annual property tax bill in McClain County?
For a home at the county median value of $233,900, the annual property tax in McClain County is approximately $1,871 — or about $156 per month. For a home worth $350,850, expect around $2,807 per year. For a $467,800 home, approximately $3,742 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a McClain County property tax assessment?
Property assessment appeals in McClain County are handled by the McClain 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 McClain County?
Oklahoma 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 0.80% shown here. Contact the McClain 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