Asotin County, WA Property Tax: $2,289/yr (2026)
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The effective property tax rate in Asotin County is 0.80% of assessed home value. On a home at the county median value of $286,200, that works out to about $2,290 per year, or $191 per month. Asotin County is located in southeastern Washington, and is home to approximately 22,424 residents.
About Asotin County
Asotin County covers approximately 636.1 square miles in Washington. The county is home to about 22,424 residents living in roughly 10,165 housing units, of which 68.3% are owner-occupied. The median household income is $69,107, and the median home was built in 1977.
Asotin County borders Nez Perce County, Wallowa County, Garfield County, Whitman County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Washington
Property taxes in Washington are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Washington offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Asotin County Assessor's office to learn which exemptions apply to your property and when to file.
Asotin County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Asotin County, WA | 0.80% | $286,200 | $2,290 |
| Washington state average | 0.76% | — | $2,175* |
| Nez Perce County | 0.87% | $291,300 | $2,529 |
| Wallowa County | 0.58% | $371,900 | $2,173 |
| Garfield County | 0.61% | $214,200 | $1,306 |
| Whitman County | 0.79% | $323,300 | $2,566 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Asotin County's median home value of $286,200. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Asotin County's property tax rate compare to the rest of Washington?
At 0.80%, Asotin County is higher than the Washington state average of 0.76%. On a home at the county median of $286,200, that means about $2,290 per year — versus $2,175 at the state average rate, a difference of $115 per year. Compared to the national average of 1.10%, Asotin County is below average.
What's a typical annual property tax bill in Asotin County?
For a home at the county median value of $286,200, the annual property tax in Asotin County is approximately $2,290 — or about $191 per month. For a home worth $429,300, expect around $3,434 per year. For a $572,400 home, approximately $4,579 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Asotin County property tax assessment?
Property assessment appeals in Asotin County are handled by the Asotin County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Asotin County?
Washington counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 0.80% shown here. Contact the Asotin County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File