San Juan County, WA Property Taxes (2026)

San Juan County owners pay a median of $4,131 a year on a median home value of $726,500, an effective rate of 0.57%. That's the 39th-highest rate of 39 Washington counties with Census data, below the Washington county median of 0.79%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

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Effective tax rate

0.57%

39th highest of 39 in WA

Median annual bill

$4,131

~$344/month

Median home value

$726,500

Washington county median

0.79%

Effective rate

What a protest could save you in San Juan County

Enter the market value from your appraisal notice. We apply San Juan County's 0.57% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$4,141
Savings at 10–15% off
$414–$621
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San Juan County vs. Washington vs. U.S. property tax rates

San Juan County0.57%
Washington county median0.79%
U.S. county median0.84%

Key stat: San Juan County's effective property tax rate is 0.57%, vs. 0.79% for the median Washington county and 0.84% for the median U.S. county. It ranks 39th of 39 in Washington. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in San Juan County

  1. 1

    Review your assessment notice

    Check the assessed value from the San Juan County Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The San Juan County deadline is July 1 or 60 days after notice. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the County Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $4,131 bill, 10–15% off is $413–$620 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Washington

Washington homeowners may qualify for exemptions that reduce taxable value. Check with the San Juan County Assessor for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in San Juan County, Washington?
The median effective property tax rate in San Juan County is 0.57%: a median annual bill of $4,131 on a median home value of $726,500. That's the 39th-highest rate of 39 Washington counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in San Juan County?
The median San Juan County property tax bill is $4,131 a year, about $344 a month, compared with a Washington county median of $2,860.
What is the deadline to appeal property taxes in San Juan County?
The deadline to appeal in San Juan County is July 1 or 60 days after notice. Missing it means waiting until the next assessment cycle.
Is San Juan County a high property tax area?
San Juan County's 0.57% effective rate is below the Washington county median of 0.79% and below the U.S. county median of 0.84%. That's the 39th-highest rate of 39 Washington counties with Census data.
Can TaxDrop help lower my San Juan County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Island County

Rate: 0.70%

Median bill: $3,765

Clallam County

Rate: 0.74%

Median bill: $2,860

Jefferson County

Rate: 0.73%

Median bill: $3,596

Skagit County

Rate: 0.82%

Median bill: $4,008

Whatcom County

Rate: 0.71%

Median bill: $3,819

Kitsap County

Rate: 0.80%

Median bill: $4,030

Snohomish County

Rate: 0.79%

Median bill: $5,121

Mason County

Rate: 0.75%

Median bill: $2,833

← All 39 Washington counties

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