Washington County property tax
Homeowners in Washington County, Idaho typically pay about 0.49% of their home's value in property tax each year — a median bill of $1,371 on a median home value of $278,100.
Typical effective rate
0.49%
higher than 85% of U.S. counties
Median tax paid
$1,371
per year
Median home value
$278,100
In ID
#17
of 44 ranked counties
At a glance
- Effective rate 0.49% — 47% lower than the U.S. median of 0.94%, and 1% higher than the Idaho median of 0.49%.
- With vs. without a mortgage — median tax $1,647 for mortgaged homes, $1,174 for homes owned outright.
- State ranking — 17th highest effective rate of 44 ranked Idaho counties; nationally it sits around the 15th percentile.
Estimate a bill for Washington County
Apply this county's typical effective rate (0.49%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Washington County, ID?
The typical effective property-tax rate in Washington County is 0.49% of a home's value per year, based on median taxes paid ($1,371) divided by the median home value ($278,100) 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 Washington County?
The median owner-occupied home in Washington County is valued at $278,100, and the median real estate tax paid is $1,371 per year. Homes with a mortgage have a median tax of $1,647, versus $1,174 for homes without one.
How does Washington County compare to the rest of Idaho?
Washington County's effective rate is 1% higher than the Idaho median, ranking 17th of 44 ranked counties in the state.
Compare nearby Idaho counties
Counties ranked closest to Washington County by in-state effective rate. Open the comparison tool or see all Idaho counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 14 | Bonneville County | 0.50% | $1,858 |
| 15 | Bingham County | 0.50% | $1,477 |
| 16 | Shoshone County | 0.50% | $1,334 |
| 18 | Benewah County | 0.49% | $1,443 |
| 19 | Butte County | 0.49% | $1,061 |
| 20 | Madison County | 0.48% | $2,001 |
Official data & resources for Washington County
- Washington County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Washington County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Washington 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.