Portland, Columbia County, Oregon Property Taxes
Property Taxes in Portland, Oregon
Median Portland, Oregon effective property tax rate: 0.41%, significantly lower than the national median of 1.02%, and lower than the Oregon state median of 0.87%.
Median Portland, Oregon home value: $1,557,300
Median annual Portland, Oregon tax bill: $4,011, $1,611 higher than the national median property tax bill of $2,400.
How are property taxes in Columbia calculated?
Property taxes in Portland, Oregon 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 Portland's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Portland, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Portland, Columbia County, Oregon Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.41%
Estimate Property Tax Bill
$6,385
$5,925
How Does the Portland Property Tax Calculator Work?
Use this Portland property tax calculator to estimate your annual property tax bill. Enter your property’s assessed value and the calculator applies Portland’s median effective tax rate of 0.41% to generate your estimate.
Enter your property’s assessed value — the figure used to calculate your bill, which reflects any exemptions you hold and is typically lower than your home’s market value. This rate is lower than Columbia County’s median tax rate and lower than Oregon’s median tax rate of 0.87%, helping explain why bills can differ from nearby areas.
Portland’s median property tax bill is $4,011, which is $1,611 higher than the Oregon median tax bill and well above the national median property tax bill of $2,400. For a more precise estimate, explore ZIP code-level tax rate trends across Portland.
About Portland Property Taxes
About Property Taxes in Portland, Columbia, Oregon
Portland’s median effective property tax rate of 0.41% is lower than the Oregon state median of 0.87% and lower than the national median of 1.02%. This rate reflects the Columbia County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Portland. Homeowners in the 97231 ZIP code carry a median effective rate of 0.41%, while those in 97231 pay 0.41%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Columbia County. Understanding which part of Portland you live in can make a meaningful difference to your annual tax bill.
Portland homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the December 31, 2025 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Portland, Columbia County, Oregon
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Portland's effective property tax rate to other cities in Oregon and the median property tax rates in Oregon and the U.S.
Our median effective property tax rate (tax bill Ă· 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 Portland Tax Rate
0.41%
Our median effective property tax rate (tax bill Ă· 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 Columbia County Tax Rate
0.74%
Median Effective Oregon Tax Rate
0.87%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Portland, Columbia County, Oregon
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 97231 | 0.20% | 0.32% | 0.41% | 0.51% | 0.81% |
Source: Ownwell
Property Tax Assessment Values Across Portland, Columbia County, Oregon
When examining property taxes in Portland, Oregon, 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 Columbia County appraisal district 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 Columbia 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. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Portland.
For example, the median home price in Portland is $1,557,300, with tax bills ranging significantly across the county. 97231 has the highest median home price at $1,557,300.
Property Tax Assessment Values Across Portland, Columbia County, Oregon
Source: Ownwell
$350,910
$954,105
$1,557,300
Median Portland Market Value
$1,557,300
Median Columbia County Market Value
$456,130
Median Oregon Market Value
$450,850
Median United States Market Value
$235,294
Property Tax Assessment Values Across Portland, Columbia County, Oregon
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 97231 | $449,220 | $679,872 | $1,557,300 | $1,689,960 | $2,004,455 |
Source: Ownwell
Property Tax Bills Across Portland, Columbia County, Oregon
Portland property tax bills are based on the assessed value of a home, not its market price. Local tax rates are applied to that assessed value to determine the annual bill, and the final amount can vary depending on the home’s location and the taxing jurisdictions that apply.
For homeowners in Portland, the median home price is $1,557,300, while the median property tax bill is $4,011. That sits above the national median property tax bill of $2,400 and reflects how higher assessed values can translate into larger tax obligations. The 25th percentile bill is $3,013, the 75th percentile is $6,558, and the 90th percentile is $7,572, showing that many homeowners face a wide range of tax costs.
Because property taxes are tied to assessed value, changes in a home’s assessment can affect the bill from year to year. For Portland homeowners, that means even a single valuation change can have a meaningful impact on housing costs.
Median Portland Tax Bill
$4,011
Median Columbia County Tax Bill
$3,312
Median Oregon Tax Bill
$3,806
Median United States Tax Bill
$2,400
Property Tax Bills Across Portland, Columbia County, Oregon
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 97231 | $2,258 | $3,013 | $4,011 | $6,558 | $7,572 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | December 31 |
Links | |
|---|---|
| Columbia Tax Assessor | |
| Website | propertysearch.columbiacountyor.gov |