San Juan County, Washington property tax
Typical rate, yearly bill and how it compares. Census survey 2020-2024.

How San Juan County compares
Property tax in San Juan County, in plain words
Homeowners in San Juan County pay a typical 0.53% of their home's value in property tax each year. On the median home, worth about $799,200, that comes to roughly $4,253 a year. That rate is below the Washington figure of 0.81% and below the national figure of 0.94%.
It ranks 39th highest of 39 counties in Washington by rate, and 2529th of about 3,100 nationwide. Homes here cost more than the state median of $564,600, so bills run higher even at a similar rate.
Owners with a mortgage report a typical bill of $3,993, and owners without one $4,552. The gap usually reflects newer buyers paying tax on higher, more recent values, while long-time owners often have caps, senior exemptions or freezes.
Washington has no broad state income tax, which tends to push more of the cost of local services onto property tax. The typical bill equals about 5.0% of the county's median household income of $84,800.
Common questions
What is the property tax rate in San Juan County?
The typical effective rate is about 0.53% of a home's market value per year, based on what owners report paying in the Census American Community Survey. The rates printed on bills are set by each taxing body and applied to assessed value after exemptions.
How much is property tax on a typical home in San Juan County?
About $4,253 a year on the median home worth $799,200.
Why is my bill different from this estimate?
These are county-wide figures. Your exact bill depends on your home's assessed value, your city, school district and special districts, and the exemptions you claim, such as a homestead or senior exemption.
Can I lower my San Juan County property tax?
Make sure you have claimed every exemption you qualify for, and check your assessment notice each year. If the assessed value looks too high compared with recent sales of similar homes, you can appeal it. Our guide to appeals walks through the steps.
Is Washington a high property tax state?
Washington's typical rate of 0.81% ranks 25th highest of the 50 states and DC. The typical bill there is $4,556 a year.
How to appeal your assessment · How to read your bill · Where these numbers come from