Gilliam County, OR Property Taxes (2026)

Gilliam County owners pay a median of $1,597 a year on a median home value of $158,400, an effective rate of 1.01%. That's the 1st-highest rate of 36 Oregon counties with Census data, above the Oregon county median of 0.76%.

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

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Effective tax rate

1.01%

1st highest of 36 in OR

Median annual bill

$1,597

~$133/month

Median home value

$158,400

Oregon county median

0.76%

Effective rate

What a protest could save you in Gilliam County

Enter the market value from your appraisal notice. We apply Gilliam County's 1.01% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$1,600
Savings at 10–15% off
$160–$240
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Gilliam County vs. Oregon vs. U.S. property tax rates

Gilliam County1.01%
Oregon county median0.76%
U.S. county median0.84%

Key stat: Gilliam County's effective property tax rate is 1.01%, vs. 0.76% for the median Oregon county and 0.84% for the median U.S. county. It ranks 1st of 36 in Oregon. 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 Gilliam County

  1. 1

    Review your assessment notice

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

  2. 2

    File your appeal before the deadline

    The Gilliam County deadline is December 31. 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 $1,597 bill, 10–15% off is $160–$240 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Oregon

Oregon homeowners may qualify for exemptions that reduce taxable value. Check with the Gilliam 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 Gilliam County, Oregon?
The median effective property tax rate in Gilliam County is 1.01%: a median annual bill of $1,597 on a median home value of $158,400. That's the 1st-highest rate of 36 Oregon 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 Gilliam County?
The median Gilliam County property tax bill is $1,597 a year, about $133 a month, compared with a Oregon county median of $2,520.
What is the deadline to appeal property taxes in Gilliam County?
The deadline to appeal in Gilliam County is December 31. Missing it means waiting until the next assessment cycle.
Is Gilliam County a high property tax area?
Gilliam County's 1.01% effective rate is above the Oregon county median of 0.76% and above the U.S. county median of 0.84%. That's the 1st-highest rate of 36 Oregon counties with Census data.
Can TaxDrop help lower my Gilliam County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Sherman County

Rate: 0.69%

Median bill: $1,436

Morrow County

Rate: 0.82%

Median bill: $1,885

Wasco County

Rate: 0.84%

Median bill: $2,784

Wheeler County

Rate: 0.73%

Median bill: $1,884

Jefferson County

Rate: 0.74%

Median bill: $2,506

Hood River County

Rate: 0.59%

Median bill: $3,359

Umatilla County

Rate: 0.99%

Median bill: $2,534

Crook County

Rate: 0.64%

Median bill: $2,703

← All 36 Oregon counties

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