King County property tax
Homeowners in King County, Washington typically pay about 0.83% of their home's value in property tax each year — a median bill of $7,114 on a median home value of $859,900.
Typical effective rate
0.83%
higher than 48% of U.S. counties
Median tax paid
$7,114
per year
Median home value
$859,900
In WA
#6
of 39 ranked counties
At a glance
- Effective rate 0.83% — 12% lower than the U.S. median of 0.94%, and 3% higher than the Washington median of 0.81%.
- With vs. without a mortgage — median tax $7,061 for mortgaged homes, $7,245 for homes owned outright.
- State ranking — 6th highest effective rate of 39 ranked Washington counties; nationally it sits around the 52th percentile.
Estimate a bill for King County
Apply this county's typical effective rate (0.83%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in King County, WA?
The typical effective property-tax rate in King County is 0.83% of a home's value per year, based on median taxes paid ($7,114) divided by the median home value ($859,900) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in King County?
The median owner-occupied home in King County is valued at $859,900, and the median real estate tax paid is $7,114 per year. Homes with a mortgage have a median tax of $7,061, versus $7,245 for homes without one.
How does King County compare to the rest of Washington?
King County's effective rate is 3% higher than the Washington median, ranking 6th of 39 ranked counties in the state.
Compare nearby Washington counties
Counties ranked closest to King County by in-state effective rate. Open the comparison tool or see all Washington counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 3 | Walla Walla County | 0.85% | $3,492 |
| 4 | Columbia County | 0.85% | $2,303 |
| 5 | Spokane County | 0.84% | $3,434 |
| 7 | Clark County | 0.82% | $4,290 |
| 8 | Cowlitz County | 0.82% | $3,245 |
| 9 | Grays Harbor County | 0.80% | $2,512 |
Official data & resources for King County
- King County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for King County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for King County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.