Dewey, Washington County, Oklahoma Property Taxes
Property Taxes in Dewey, Oklahoma
Median Dewey, Oklahoma effective property tax rate: 0.87%, significantly lower than the national median of 1.02%, and lower than the Oklahoma state median of 0.90%.
Median Dewey, Oklahoma home value: $97,700
Median annual Dewey, Oklahoma tax bill: $773, $1,627 lower than the national median property tax bill of $2,400.
How are property taxes in Washington calculated?
Property taxes in Dewey, Oklahoma are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Dewey's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Dewey, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Dewey, Washington County, Oklahoma Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.87%
Estimate Property Tax Bill
$850
$789
How Does the Dewey Property Tax Calculator Work?
Use this Dewey property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Dewey's median effective tax rate of 0.87% — based on actual property records in Washington County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Dewey's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Dewey: rates range from 0.87% in 74029 to 0.87% in 74029, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Dewey.
About Dewey Property Taxes
About Property Taxes in Dewey, Washington, Oklahoma
Dewey's median effective property tax rate of 0.87% is lower than the Oklahoma state median of 0.90% and lower than the national median of 1.02%. This rate reflects the Washington County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Dewey. Homeowners in the 74029 ZIP code carry a median effective rate of 0.87%, while those in the 74029 pay 0.87%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Washington County. Understanding which part of Dewey you live in can make a meaningful difference to your annual tax bill.
Dewey homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the March 6, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Dewey, Washington County, Oklahoma
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Dewey's effective property tax rate to other cities in Oklahoma and the median property tax rates in Oklahoma and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Dewey Tax Rate
0.87%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Washington County Tax Rate
1.11%
Median Effective Oklahoma Tax Rate
0.90%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Dewey, Washington County, Oklahoma
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 74029 | 0.36% | 0.61% | 0.87% | 1.05% | 1.17% |
Source: Ownwell
Property Tax Assessment Values Across Dewey, Washington County, Oklahoma
When examining property taxes in Dewey, Oklahoma, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Washington County assessor estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Washington County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Dewey.
For example, the median home price in Dewey is $97,700, with tax bills ranging significantly across the county. 74029 has the highest median home price at $97,700.
Property Tax Assessment Values Across Dewey, Washington County, Oklahoma
Source: Ownwell
$43,380
$108,839
$174,298
Median Dewey Market Value
$97,700
Median Washington County Market Value
$124,610
Median Oklahoma Market Value
$160,842
Median United States Market Value
$235,294
Property Tax Assessment Values Across Dewey, Washington County, Oklahoma
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 74029 | $41,042 | $63,054 | $97,700 | $154,750 | $227,009 |
Source: Ownwell
Property Tax Bills Across Dewey, Washington County, Oklahoma
Dewey property tax bills are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. For homeowners in Washington County, the amount due can vary widely depending on where the home is located and how it is assessed. With a median home price of $97,700, tax bills in Dewey are generally lower than many national comparisons, but they still depend on the specific valuation used by the county.
What a homeowner pays is influenced by the assessed value, local taxing jurisdictions, and any exemptions that may apply. In Dewey, the tax bill at the 25th percentile is $384, while the 75th percentile reaches $1,380 and the 90th percentile is $2,246. The median tax bill is $773 in ZIP code 74029. Because property taxes are tied to assessed value, even small changes in valuation can affect yearly costs and make a meaningful difference for homeowners.
Median Dewey Tax Bill
$773
Median Washington County Tax Bill
$1,255
Median Oklahoma Tax Bill
$1,339
Median United States Tax Bill
$2,400
Property Tax Bills Across Dewey, Washington County, Oklahoma
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 74029 | $211 | $384 | $773 | $1,380 | $2,246 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 6 |
Links | |
|---|---|
| Washington Tax Assessor | |
| Website | oklmrecords.com |