Columbia County property tax
Homeowners in Columbia County, Washington typically pay about 0.85% of their home's value in property tax each year — a median bill of $2,303 on a median home value of $271,200.
Typical effective rate
0.85%
higher than 47% of U.S. counties
Median tax paid
$2,303
per year
Median home value
$271,200
In WA
#4
of 39 ranked counties
At a glance
- Effective rate 0.85% — 9% lower than the U.S. median of 0.94%, and 5% higher than the Washington median of 0.81%.
- With vs. without a mortgage — median tax $2,232 for mortgaged homes, $2,431 for homes owned outright.
- State ranking — 4th highest effective rate of 39 ranked Washington counties; nationally it sits around the 53th percentile.
Estimate a bill for Columbia County
Apply this county's typical effective rate (0.85%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Columbia County, WA?
The typical effective property-tax rate in Columbia County is 0.85% of a home's value per year, based on median taxes paid ($2,303) divided by the median home value ($271,200) 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 Columbia County?
The median owner-occupied home in Columbia County is valued at $271,200, and the median real estate tax paid is $2,303 per year. Homes with a mortgage have a median tax of $2,232, versus $2,431 for homes without one.
How does Columbia County compare to the rest of Washington?
Columbia County's effective rate is 5% higher than the Washington median, ranking 4th of 39 ranked counties in the state.
Compare nearby Washington counties
Counties ranked closest to Columbia County by in-state effective rate. Open the comparison tool or see all Washington counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 1 | Pierce County | 0.91% | $4,770 |
| 2 | Thurston County | 0.88% | $4,209 |
| 3 | Walla Walla County | 0.85% | $3,492 |
| 5 | Spokane County | 0.84% | $3,434 |
| 6 | King County | 0.83% | $7,114 |
| 7 | Clark County | 0.82% | $4,290 |
Official data & resources for Columbia County
- Columbia County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Columbia County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Columbia 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.