Grant County, Oregon Property Taxes

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Property Taxes in Grant County, Oregon

Median Grant County effective property tax rate: 0.70%, significantly lower than the national median of 1.02%.
Median Grant County home value: $204,600
Median annual Grant County tax bill: $1,447, lower than the national median property tax bill of $2,400.

How are property taxes in Grant County calculated?

Property taxes in Grant County are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Grant County's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Canyon City or another part of Grant County, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Grant County, Oregon Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.7%

Estimate Property Tax Bill

$1,432

$1,329

How Does the Grant County Property Tax Calculator Work?

Use this Grant County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Grant County's median effective tax rate of 0.70% to generate your estimate.

Enter your property's estimated assessed value — the figure used for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.

Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Grant County's median tax rate is lower than Oregon's 0.87% median rate and also below the national median property tax rate of 1.02%.

For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Grant County.

Property Tax Rates Across Grant County, Oregon

What Are Effective Property Tax Rates Across Grant County?

Local government entities set tax rates, which vary widely across Grant County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.

Below, compare Grant County's effective property tax rate to other counties in Oregon or the U.S. median of 1.02%.

Grant County's median effective rate stands at 0.70%, which is lower than the national median of 1.02%. Within Grant County, the highest rate is found in Prairie City at 0.79%, while Kimberly has the lowest at 0.44%.

These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.

Property Tax Rates Across Grant County, Oregon

Source: Ownwell

0.39%

0.59%

0.79%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Grant County Tax Rate

0.70%

Median Effective Oregon Tax Rate

0.87%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Grant County, Oregon

City	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
Canyon City	0.56%	0.68%	0.78%	0.87%	0.93%
Dayville	0.32%	0.44%	0.57%	0.70%	0.81%
John Day	0.56%	0.66%	0.74%	0.83%	0.90%
Kimberly	0.22%	0.28%	0.44%	0.56%	0.58%
Long Creek	0.23%	0.40%	0.50%	0.60%	0.72%
Monument	0.27%	0.38%	0.50%	0.65%	0.73%
Mount Vernon	0.46%	0.57%	0.70%	0.84%	0.93%
Prairie City	0.53%	0.67%	0.79%	0.91%	1.01%
Ritter	0.23%	0.27%	0.39%	0.50%	0.59%
Seneca	0.32%	0.42%	0.54%	0.76%	0.89%
Sumpter	0.46%	0.55%	0.60%	0.71%	0.83%
Bates	N/A	N/A	N/A	N/A	N/A
Caldwell	N/A	N/A	N/A	N/A	N/A
Fox	N/A	N/A	N/A	N/A	N/A
Granite	N/A	N/A	N/A	N/A	N/A
Mt Vernon	N/A	N/A	N/A	N/A	N/A
Paulina	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across Grant County, Oregon

When examining property taxes in Grant County, understanding the distinction between market value and assessed value is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Grant County assessor estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Grant County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of October.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. The median tax bill in Grant County is $1,447, compared with the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. Tax bills range significantly across the county, with Kimberly at $2,125 and Sumpter at $450. Ritter has the highest median home price at $549,830.

Property Tax Assessment Values Across Grant County, Oregon

Source: Ownwell

$66,670

$308,250

$549,830

Median Grant County Market Value

$204,600

Median Oregon Market Value

$450,850

Median United States Market Value

$235,294

Property Tax Assessment Values Across Grant County, Oregon

City	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
Canyon City	$122,179	$179,362	$244,190	$362,795	$465,526
Dayville	$92,310	$143,815	$210,080	$309,328	$447,069
John Day	$134,368	$180,725	$245,570	$351,840	$494,910
Kimberly	$215,528	$339,632	$540,685	$830,730	$2,191,996
Long Creek	$63,202	$97,150	$145,725	$238,295	$482,146
Monument	$152,264	$198,790	$284,515	$406,385	$580,626
Mount Vernon	$80,571	$131,692	$197,765	$319,200	$432,066
Prairie City	$93,406	$129,830	$178,900	$244,145	$371,140
Ritter	$121,767	$254,002	$549,830	$802,010	$1,524,517
Seneca	$45,400	$72,630	$117,130	$156,610	$303,392
Sumpter	$25,926	$51,590	$66,670	$98,415	$257,586
Bates	N/A	N/A	N/A	N/A	N/A
Caldwell	N/A	N/A	N/A	N/A	N/A
Fox	N/A	N/A	N/A	N/A	N/A
Granite	N/A	N/A	N/A	N/A	N/A
Mt Vernon	N/A	N/A	N/A	N/A	N/A
Paulina	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across Grant County, Oregon

Property tax bills in Grant County, Oregon are based on the assessed value of a home, not its market price alone. Local taxing authorities apply their tax rates to that assessed value to determine the annual bill, so two homes with similar market values can still owe different amounts if their assessments differ.

Several factors influence what homeowners pay, including the home’s assessed value, local levies, and the specific city or area where the property is located. In Grant County, the median home price is $204,600, and property tax bills vary widely across the county. The 25th percentile tax bill is $824, while the 75th percentile is $2,225 and the 90th percentile reaches $3,310.

That range shows how property taxes can affect homeowners differently depending on location and valuation. In Kimberly, the highest median tax bill is $2,125, while Sumpter has the lowest median tax bill at $450.

Property Tax Bills Across Grant County, Oregon

Source: Ownwell

$450

$1,288

$2,125

Median Grant County Tax Bill

$1,447

Median Oregon Tax Bill

$3,806

Median United States Tax Bill

$2,400

Property Tax Bills Across Grant County, Oregon

City	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
Canyon City	$947	$1,315	$1,826	$2,714	$3,589
Dayville	$458	$780	$1,157	$1,863	$2,629
John Day	$916	$1,266	$1,799	$2,628	$3,629
Kimberly	$716	$1,757	$2,125	$3,476	$5,862
Long Creek	$256	$513	$746	$1,293	$2,296
Monument	$644	$830	$1,455	$2,252	$2,679
Mount Vernon	$532	$864	$1,432	$2,076	$2,762
Prairie City	$746	$938	$1,354	$1,897	$2,655
Ritter	$519	$1,317	$2,104	$3,090	$4,466
Seneca	$229	$349	$614	$1,026	$1,866
Sumpter	$209	$323	$450	$717	$1,425
Bates	N/A	N/A	N/A	N/A	N/A
Caldwell	N/A	N/A	N/A	N/A	N/A
Fox	N/A	N/A	N/A	N/A	N/A
Granite	N/A	N/A	N/A	N/A	N/A
Mt Vernon	N/A	N/A	N/A	N/A	N/A
Paulina	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	December 31

Links
Grant Tax Assessor
Website	www.cci400web.com

Frequently Asked Property Tax Questions in Grant County, Oregon

How are property taxes calculated in Grant County, Oregon?

Property taxes in Grant County, Oregon are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Grant County, Oregon?

To appeal your property taxes in Grant County, Oregon, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Grant County, Oregon?

Common property tax exemptions in Grant County, Oregon include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Grant County, Oregon?

Property tax deadlines in Grant County, Oregon vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Grant County, Oregon?

Ownwell provides professional property tax appeal services in Grant County, Oregon. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.