Property Taxes in Olympia, Washington
Median Olympia, Washington effective property tax rate: 1.04%, significantly lower than the national median of 1.02%, and higher than the Washington state median of 0.92%.
Median Olympia, Washington home value: $584,035
Median annual Olympia, Washington tax bill: $6,150, $3,750 higher than the national median property tax bill of $2,400.
How are property taxes in Mason calculated?
Property taxes in Olympia, Washington 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 Olympia's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Olympia, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Olympia Property Tax Calculator Work?
Use this Olympia property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Olympia's median effective tax rate of 1.04% — based on actual property records in Mason County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Olympia'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 Olympia: rates range from 6150.00 in 98502 to 6150.00 in 98502, 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 Olympia.
About Olympia Property Taxes
About Property Taxes in Olympia, Mason, Washington
Olympia’s median effective property tax rate of 1.04% is lower than the Washington state median of 0.92% and higher than the national median of 1.02%. This rate reflects the Mason County base levy combined with local school district levies and Local Improvement Districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Olympia. Homeowners in the 98502 ZIP code carry a median effective rate of 1.04%, and the same ZIP also shows the city’s median tax bill of $6,150. That consistency still reflects how school district boundaries and local assessment districts are drawn across Mason County, and it can make a meaningful difference to your annual tax bill.
Olympia homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the July 1, 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 Olympia, Mason County, Washington
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 Olympia's effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.
Our median effective property tax rate (tax bill Ă· 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 Olympia Tax Rate
1.04%
Our median effective property tax rate (tax bill Ă· 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 Mason County Tax Rate
0.83%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Olympia, Mason County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98502 | 0.74% | 0.95% | 1.04% | 1.04% | 1.06% |
Source: Ownwell
Property Tax Assessment Values Across Olympia, Mason County, Washington
When examining property taxes in Olympia, Washington, 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 Mason County assessment office 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 Mason County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of September.
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. For example, the median home price in Olympia is $584,035, with tax bills ranging significantly across the county. Zip code 98502 has the highest median home price at $584,035.
Property Tax Assessment Values Across Olympia, Mason County, Washington
Source: Ownwell
$138,885
$361,460
$584,035
Median Olympia Market Value
$584,035
Median Mason County Market Value
$309,355
Median Washington Market Value
$501,600
Median United States Market Value
$274,101
Property Tax Assessment Values Across Olympia, Mason County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98502 | $213,840 | $416,695 | $584,035 | $749,246 | $832,585 |
Source: Ownwell
Property Tax Bills Across Olympia, Mason County, Washington
Property tax bills in Olympia are calculated by applying local tax rates to a home’s assessed value, which is based on the market value of the property. The assessed value is the starting point for determining how much a homeowner owes, and local taxing districts then add their rates to produce the final bill.
For homeowners in Olympia, this means a higher assessed value can lead to a higher property tax bill, while a lower assessed value can reduce it. The median home price in the city is $584,035, and the median property tax bill is $6,150 in ZIP code 98502. That figure is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%.
Because property taxes are tied to value and local rates, they can have a meaningful impact on monthly housing costs and long-term affordability for homeowners.
Median Olympia Tax Bill
$6,150
Median Mason County Tax Bill
$2,628
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$3,209
Property Tax Bills Across Olympia, Mason County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98502 | $1,741 | $3,845 | $6,150 | $7,599 | $8,565 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
| Tax Bill | |
| Issued | February 10 |
| Due Date #1 | April 30 |
| Due Date #2 | October 31 |
Links | |
|---|---|
| Mason Tax Assessor | |
| Website | property.masoncountywa.gov |