San Juan County Property Taxes
San Juan County, Washington
Effective Tax Rate
0.00%
36.4% above state avgMedian Annual Tax
$0
$344/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.57%
At a Glance
Median Home Value
$726,500
State avg ▲ $397,674
Tax w/ Mortgage/yr
$3,916
$326/mo escrow
Tax w/o Mortgage/yr
$4,453
$371/mo
State Tax Rate Rank
#1
of 39 counties (1 = lowest)
Data Story
About Property Taxes in San Juan County, Washington
San Juan has lowest rate nationally
San Juan County's effective tax rate of 0.569% ranks in the bottom 10% nationally, well below the national median of 0.750%. Despite high home values, the median property tax of $4,131 remains below the national median of $2,690 due to lower rate.
Washington's lowest effective rate
San Juan County has the lowest effective tax rate in Washington at 0.569%, compared to the state average of 0.761%. The county's median property tax of $4,131 reflects its sky-high median home value of $726,500 rather than the tax rate.
Island premium homes, island discounts
San Juan County's 0.569% rate is dramatically lower than neighboring Skagit County (0.824%) and Snohomish County (0.794%), reflecting the islands' unique tax structure. Wealthy island homeowners benefit from both high property values and unusually low rates.
Premium homes, moderate tax bills
San Juan County's median home value of $726,500 would generate roughly $4,131 in annual property taxes at the county's 0.569% rate. Non-mortgaged homeowners pay about $4,453 while mortgaged owners pay $3,916.
Even wealthy homeowners should appeal
San Juan County homeowners, regardless of home value, should review assessments for accuracy and file appeals when warranted. The low rate means small assessment errors cost proportionally less, but over decades they add up.
How San Juan County Compares
Median Annual Property Tax
San Juan County
0.57%
Effective rate
Washington Avg
0.76%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in San Juan County, Washington?
How much are property taxes in San Juan County?
How does San Juan County compare to the Washington average?
What is the median home value in San Juan County, Washington?
Is San Juan County a low property tax area in Washington?
How does San Juan County rank for property taxes in Washington?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Washington
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.