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Mason County, Washington Property Taxes (2026)

Mason County homeowners pay a median property tax of $2,833/year on a median home value of $377,400 — an effective rate of 0.75%, which is below the national median of 1.02%. Mason County has a population of approximately 66,968.

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Effective Tax Rate

0.75%

Lower than the Washington median of 0.79%

Median Home Value

$377,400

Annual Tax Bill

$2,833

~$236/month

Est. Annual Savings

$425

If reduced by 15%

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Mason County, Washington Property Tax Calculator

Enter your address to instantly see if you're overpaying on property taxes. Our tool compares your assessed value against recent comparable sales in Mason County to estimate your potential savings.

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Average Annual Savings

$425

Estimated savings for Mason County homeowners

Property Tax Rates: Mason County vs. Washington vs. National

Mason County0.75%
Washington Median0.79%
National Median1.02%

Key stat: The effective property tax rate in Mason County, Washington is 0.75%, compared to the Washington median of 0.79% and the national median of 1.02%. (Source: U.S. Census Bureau, ACS 5-Year Estimates)

How Mason County Compares Across Washington

See where Mason County's tax metrics fall relative to all 39 Washington counties.

Tax Rate Distribution

Percentile distribution across all Washington counties

10th

1.00%

25th

1.00%

Median

0.79%

75th

1.00%

90th

1.00%

Home Value Distribution

Percentile distribution across all Washington counties

10th

$273,660

25th

$285,200

Median

$370,500

75th

$478,500

90th

$535,460

Tax Bill Distribution

Percentile distribution across all Washington counties

10th

$2,042

25th

$2,259

Median

$2,860

75th

$3,681

90th

$4,090

Mason County County Assessor Information

Mason County County Assessor

Assessing Authority

Mason County Assessor

Appeal Deadline

July 1 or 60 days after notice

Washington appeal filing deadline

State

Washington

How to appeal

Let TaxDrop handle it for you →

How to Appeal Your Property Taxes in Mason County

If you own property in Mason County, you have the legal right to appeal your assessed value. Here is the step-by-step process:

1

Review your assessment notice

Check the assessed value from the Mason County Assessor. Compare it to recent sales of similar homes in your area.

2

File your appeal before the deadline

The Washington deadline is July 1 or 60 days after notice. Missing this deadline means waiting until the next assessment year.

3

Gather supporting evidence

Compile recent comparable sales, photos of property condition issues, independent appraisals, or any factors that reduce your home's value.

4

Present your case

Attend a hearing or submit your evidence to the County Assessor. Present clear data showing your assessed value is too high.

5

Receive your decision

If successful, your assessed value and tax bill will be reduced. With a median bill of $2,833, even a 10-15% reduction means $283-$425 in annual savings.

Skip the hassle — let TaxDrop handle it

TaxDrop's licensed consultants analyze your property, build your case with comparable sales data, and represent you through the entire appeal process. You pay nothing unless we save you $500 or more.

Start Your Mason County Appeal →Free Tax Rate Calculator

Property Tax Exemptions in Washington

Washington homeowners may qualify for exemptions that reduce their taxable value. Common exemptions include:

Homestead Exemption

Available to primary residence owners. Reduces the assessed value used to calculate your tax bill.

Senior/Over-65 Exemption

Additional exemption for homeowners age 65+. May include a tax ceiling that freezes your bill.

Disability Exemption

For homeowners with qualifying disabilities. Similar benefits to the over-65 exemption.

Veteran Exemption

Disabled veterans may receive partial or full exemptions depending on disability rating.

Frequently Asked Questions

What is the property tax rate in Mason County, Washington?
The median effective property tax rate in Mason County, Washington is 0.75%. On a home valued at $377,400, the median annual property tax bill is $2,833. Source: U.S. Census Bureau, ACS 2026.
How much are property taxes in Mason County?
The median annual property tax bill in Mason County is $2,833, which works out to approximately $236/month. This is based on the median home value of $377,400 and an effective tax rate of 0.75%.
How do I appeal my property taxes in Mason County?
To appeal your property taxes in Mason County, Washington, you need to file with the Mason County Assessor before the deadline of July 1 or 60 days after notice. You'll need evidence that your assessed value exceeds your property's market value, such as recent comparable sales. TaxDrop can handle this entire process for you — you pay nothing unless we save you $500 or more.
Is Mason County a high property tax area?
Mason County's effective tax rate of 0.75% is below the national median of 1.02%. It's below the Washington median of 0.79%.
What is the deadline to appeal property taxes in Washington?
The deadline to appeal property taxes in Washington is July 1 or 60 days after notice. It's important to file before this deadline — missing it means waiting until the next assessment cycle. TaxDrop monitors deadlines and files on your behalf to ensure you never miss the window.
Can TaxDrop help lower my Mason County property taxes?
Yes. TaxDrop helps homeowners in Mason County, Washington appeal their property tax assessments. We analyze your property, compare it against local comparable sales, and handle the entire appeal process. Our fee is 25% of your savings — and if we don't save you at least $500, you pay nothing.

Nearby Counties

Kittitas County

Rate: 0.71%

Tax bill: $3,255

Klickitat County

Rate: 0.62%

Tax bill: $2,401

Lewis County

Rate: 0.71%

Tax bill: $2,433

Lincoln County

Rate: 0.60%

Tax bill: $1,621

Okanogan County

Rate: 0.77%

Tax bill: $2,194

Pacific County

Rate: 0.82%

Tax bill: $2,250

Pend Oreille County

Rate: 0.67%

Tax bill: $2,048

Pierce County

Rate: 0.94%

Tax bill: $4,555

← View all 39 Washington counties

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