Adams County, WA Property Taxes (2026)

Adams County owners pay a median of $2,104 a year on a median home value of $251,300, an effective rate of 0.84%. That's the 7th-highest rate of 39 Washington counties with Census data, above the Washington county median of 0.79%.

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

Is your Adams appraisal too high?

We compare your value to recent Adams County sales and show you in about a minute whether a appeal is worth it.

  • Free check
  • No credit card

Effective tax rate

0.84%

7th highest of 39 in WA

Median annual bill

$2,104

~$175/month

Median home value

$251,300

Washington county median

0.79%

Effective rate

What a protest could save you in Adams County

Enter the market value from your appraisal notice. We apply Adams County's 0.84% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$2,111
Savings at 10–15% off
$211–$317
Check my actual assessment →

Adams County vs. Washington vs. U.S. property tax rates

Adams County0.84%
Washington county median0.79%
U.S. county median0.84%

Key stat: Adams County's effective property tax rate is 0.84%, vs. 0.79% for the median Washington county and 0.84% for the median U.S. county. It ranks 7th 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 Adams County

  1. 1

    Review your assessment notice

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

  2. 2

    File your appeal before the deadline

    The Adams 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 $2,104 bill, 10–15% off is $210–$316 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

Check my assessment

Property tax exemptions in Washington

Washington homeowners may qualify for exemptions that reduce taxable value. Check with the Adams 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 Adams County, Washington?
The median effective property tax rate in Adams County is 0.84%: a median annual bill of $2,104 on a median home value of $251,300. That's the 7th-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 Adams County?
The median Adams County property tax bill is $2,104 a year, about $175 a month, compared with a Washington county median of $2,860.
What is the deadline to appeal property taxes in Adams County?
The deadline to appeal in Adams County is July 1 or 60 days after notice. Missing it means waiting until the next assessment cycle.
Is Adams County a high property tax area?
Adams County's 0.84% effective rate is above the Washington county median of 0.79% and below the U.S. county median of 0.84%. That's the 7th-highest rate of 39 Washington counties with Census data.
Can TaxDrop help lower my Adams County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Franklin County

Rate: 0.76%

Median bill: $2,638

Lincoln County

Rate: 0.60%

Median bill: $1,621

Whitman County

Rate: 0.79%

Median bill: $2,566

Grant County

Rate: 0.82%

Median bill: $2,268

Walla Walla County

Rate: 0.90%

Median bill: $3,386

Columbia County

Rate: 0.86%

Median bill: $2,215

Garfield County

Rate: 0.61%

Median bill: $1,306

Spokane County

Rate: 0.86%

Median bill: $3,196

← All 39 Washington counties

Stop overpaying on property taxes

See in about a minute whether your Adams value looks too high.

Check my assessment — free