Mason County, Washington Property Taxes
Property Taxes in Mason County, Washington
Median Mason County effective property tax rate: 0.83%, significantly lower than the national median of 1.02%.
Median Mason County home value: $309,355
Median annual Mason County tax bill: $2,628, higher by $228 than the national median property tax bill of $2,400.
How are property taxes in Mason County calculated?
Property taxes in Mason County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Mason County or another part of Mason County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Mason County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.83%
Estimate Property Tax Bill
$2,568
$2,383
How Does the Mason County Property Tax Calculator Work?
Use this Mason County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Mason County's median effective tax rate of 0.83% to generate your estimate.
Enter your property's estimated assessed value — the figure the appraisal district assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Mason County's median effective tax rate is lower than Washington's 0.92% state median tax rate, but the median property tax bill of $2,628 is $228 higher than the state median bill of $2,400.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Mason County.
Property Tax Rates Across Mason County, Washington
What Are Effective Property Tax Rates Across Mason County?
Local government entities set tax rates, which vary widely across Mason County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Mason County's effective property tax rate to other counties in Washington or the U.S. median of 1.02%.
Mason County's median effective rate stands at 0.83%, which is lower than the national median of 1.02%. Within Mason County, the highest rate is found in Olympia at 1.04%, while Lilliwaup has the lowest at 0.66%.
These variations reflect differences in local school district levies, Local improvement districts (LIDs) assessments, and special district bonds — which compound the base county rate.
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 Mason County Tax Rate
0.83%
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 Tax Rate
0.92%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Mason County, Washington
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Allyn | 0.72% | 0.78% | 0.89% | 0.94% | 1.03% |
| Belfair | 0.69% | 0.75% | 0.81% | 0.93% | 1.03% |
| Elma | 0.44% | 0.73% | 0.85% | 1.09% | 1.24% |
| Grapeview | 0.71% | 0.76% | 0.82% | 0.86% | 0.97% |
| Hoodsport | 0.52% | 0.64% | 0.70% | 0.74% | 0.79% |
| Lilliwaup | 0.53% | 0.63% | 0.66% | 0.71% | 0.79% |
| Matlock | 0.11% | 0.70% | 0.75% | 0.85% | 0.91% |
| Mccleary | 0.63% | 0.89% | 0.93% | 1.08% | 1.21% |
| Olympia | 0.74% | 0.95% | 1.04% | 1.04% | 1.06% |
| Shelton | 0.66% | 0.79% | 0.90% | 1.06% | 1.14% |
| Skokomish Nation | 0.22% | 0.64% | 0.70% | 0.72% | 0.77% |
| Tahuya | 0.69% | 0.76% | 0.84% | 0.93% | 1.05% |
| Union | 0.63% | 0.68% | 0.72% | 0.75% | 0.84% |
| Bremerton | N/A | N/A | N/A | N/A | N/A |
| Lake Forest Park | N/A | N/A | N/A | N/A | N/A |
| Montesano | N/A | N/A | N/A | N/A | N/A |
| Northgate | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Mason County, Washington
When examining property taxes in Mason County, 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 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 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. 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 Mason County.
For example, the median tax bill in Mason County is $2,628, compared with the national median property tax bill of $2,400. Olympia has the highest median home price at $584,035.
Property Tax Assessment Values Across Mason County, Washington
Source: Ownwell
$138,885
$361,460
$584,035
Median Mason County Market Value
$309,355
Median Washington Market Value
$501,600
Median United States Market Value
$235,294
Property Tax Assessment Values Across Mason County, Washington
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Allyn | $203,113 | $306,280 | $401,360 | $517,190 | $654,169 |
| Belfair | $116,401 | $217,681 | $332,062 | $488,006 | $671,752 |
| Elma | $22,898 | $61,084 | $154,675 | $271,331 | $415,724 |
| Grapeview | $157,232 | $256,600 | $414,425 | $631,935 | $922,309 |
| Hoodsport | $57,390 | $115,592 | $211,642 | $331,184 | $463,438 |
| Lilliwaup | $37,814 | $100,535 | $234,745 | $392,282 | $630,045 |
| Matlock | $119,207 | $189,605 | $276,890 | $382,200 | $459,605 |
| Mccleary | $98,296 | $270,721 | $365,800 | $557,432 | $618,850 |
| Olympia | $213,840 | $416,695 | $584,035 | $749,246 | $832,585 |
| Shelton | $115,402 | $216,155 | $314,335 | $443,078 | $599,844 |
| Skokomish Nation | $41,369 | $72,582 | $138,885 | $214,345 | $414,060 |
| Tahuya | $62,099 | $134,728 | $244,770 | $417,562 | $608,262 |
| Union | $42,611 | $239,008 | $403,155 | $563,635 | $737,464 |
| Bremerton | N/A | N/A | N/A | N/A | N/A |
| Lake Forest Park | N/A | N/A | N/A | N/A | N/A |
| Montesano | N/A | N/A | N/A | N/A | N/A |
| Northgate | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Mason County, Washington
Property tax bills in Mason County are based on the assessed value of a home and the local tax rates set by taxing districts. When a property’s market value changes, the assessed value can also change, which affects the final bill. Local levies for schools, county services, fire protection, and other public needs are combined to determine what homeowners owe.
For a home with a median market value of $309,355, the tax bill can vary widely depending on location and the specific levies that apply. In Mason County, the 25th percentile tax bill is $1,427, while the 75th percentile tax bill is $3,951. At the high end, the 90th percentile reaches $5,497.
That means two similar homes can receive very different bills if they are in different parts of the county. For homeowners, this can significantly affect monthly housing costs and long-term affordability.
Median Mason County Tax Bill
$2,628
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$2,400
Property Tax Bills Across Mason County, Washington
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Allyn | $1,259 | $2,595 | $3,516 | $4,520 | $5,772 |
| Belfair | $784 | $1,719 | $2,708 | $4,039 | $5,726 |
| Elma | $205 | $438 | $1,172 | $2,168 | $3,189 |
| Grapeview | $1,073 | $1,993 | $3,285 | $5,155 | $7,508 |
| Hoodsport | $310 | $587 | $1,422 | $2,339 | $3,529 |
| Lilliwaup | $273 | $513 | $1,426 | $2,518 | $4,226 |
| Matlock | $264 | $948 | $1,908 | $2,777 | $3,564 |
| Mccleary | $810 | $2,215 | $3,193 | $4,773 | $5,670 |
| Olympia | $1,741 | $3,845 | $6,150 | $7,599 | $8,565 |
| Shelton | $697 | $1,805 | $2,850 | $4,063 | $5,580 |
| Skokomish Nation | $176 | $442 | $994 | $1,611 | $3,091 |
| Tahuya | $421 | $988 | $2,010 | $3,436 | $4,968 |
| Union | $279 | $1,574 | $2,855 | $4,029 | $5,561 |
| Bremerton | N/A | N/A | N/A | N/A | N/A |
| Lake Forest Park | N/A | N/A | N/A | N/A | N/A |
| Montesano | N/A | N/A | N/A | N/A | N/A |
| Northgate | N/A | N/A | N/A | N/A | N/A |
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 |