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Mason County, Washington: property tax rate, home values and income

Effective property tax rate

0.75%

23rd highest of 39 counties in Washington

Median home value

$377,400

18th highest in Washington

Median household income

$78,359

15th highest in Washington

Population

66,968

Census ACS 2023

Sources: US Census Bureau, American Community Survey 5-year estimates · Updated 11/03/2026

In Mason County, Washington the effective property tax rate is 0.75%. The median homeowner pays $2,833 a year in real estate taxes on a home with a median value of $377,400. That rate is the 23rd highest of the 39 Washington counties with published data, and the 1793rd highest of 3,132 counties in the United States.

Property tax in Mason County

The effective rate is the median real estate tax paid divided by the median home value. The Washington statewide average is 0.84%, so Mason County is below it. Applying this county's rate to other home prices gives a rough idea of the yearly bill; actual bills depend on the school district, exemptions and the assessed value.

Home valueEstimated tax per yearPer month
$200,000$1,500$125
$300,000$2,250$188
$377,400 (county median)$2,830$236
$400,000$3,000$250
$500,000$3,750$313

Home values and incomes

The median home value is $377,400 (18th highest in Washington, 265th highest nationally) and the median household income is $78,359. Homes cost about 4.8 times a typical household's yearly income. Median gross rent is $1,205 a month. 81.1% of occupied homes are owner-occupied. Homeowners with a mortgage pay a median of $1,159 a year for insurance. For comparison, the Washington statewide median home value is $587,533.

Counties near Mason County in the Washington property tax ranking

CountyEffective rateMedian home value
Whitman County0.79%$323,300
Okanogan County0.77%$284,200
Franklin County0.76%$345,700
Mason County0.75%$377,400
Clallam County0.74%$385,600
Jefferson County0.73%$495,100
Skamania County0.72%$472,600

Frequently asked questions

What is the property tax rate in Mason County, Washington?

The effective property tax rate is 0.75% of home value per year, the 23rd highest of 39 counties in Washington (Census ACS 2023 5-year estimates).

How much is property tax on a $300,000 home in Mason County?

At the county's effective rate of 0.75%, about $2,250 a year (roughly $188 a month). Your actual bill depends on the assessed value, your school district and exemptions.

What is the median home value in Mason County?

The median home value is $377,400 (Census ACS 2023 5-year estimates, owner-occupied homes).

What is the median household income in Mason County?

The median household income is $78,359 (Census ACS 2023 5-year estimates).