Washington County, OR property tax rate
Washington County · Oregon · #7 of 36 in the state
Median annual property tax $4,929 · median home value $588,000
$4,929 a year · $411 a month using the area benchmark. Enter a value such as 350,000 or 350,000.00.
A rough planning estimate, not a tax quote.
Below the U.S. benchmark 0.94% (0.89×), above the Oregon benchmark 0.81%.
Ranked among 36 Oregon counties with available benchmarks.
What this benchmark means
Median real estate taxes paid ÷ median owner-occupied home value, ACS 2020–2024 — a ratio of two medians, not a statutory rate, not the median of individual bills and not your property's rate. Exemptions people already claim are reflected in the survey; your bill depends on taxable value, local districts, exemptions and reassessment after a sale.
Census figures behind this page
| Median real estate taxes paid | $4,929 |
|---|---|
| With a mortgage / without | $4,931 / $4,923 |
| Median home value | $588,000 |
| Median household income | $107,772 · tax is 4.6% of it |
| Median gross rent | $1,849 / mo |
| Owner-occupied | 61% of 235,406 homes |
| Population | 603,947 |
When it's due in Oregon
All states| First third | Due Nov 15 Late after Nov 16 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
|---|---|
| Second third | Due Feb 15 Late after Feb 16 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
| Final third | Due May 15 Late after May 16 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
| Late penalty | 1.333% per month (16% annually) interest charged on delinquent installments (ORS 311.505(2)) |
| Early-payment discount | 3% discount if full payment made by Nov 15; 2% discount if two-thirds paid by Nov 15 (ORS 311.505(3)) |
| Appeal window | file petition with Board of Property Tax Appeals (BOPTA) between tax bill mailing and December 31 (ORS 309.100) |
Taxes payable in 3 installments: Nov 15, Feb 15, May 15. Discounts: 3% full payment by Nov 15, 2% two-thirds payment by Nov 15. Regular annual schedule; tax year: fiscal year July 1 - June 30, bills mailed mid-October. Source: ORS 311.505, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.
Oregon counties with a similar rate
All 36How this benchmark was computed
Median real estate taxes paid by owner-occupied households in Washington County ($4,929) divided by the median value of those homes ($588,000), both from the Census Bureau's American Community Survey 2020–2024 5-year estimates. It is a ratio of two medians — a reasonable area benchmark, not the assessor's mill rate and not any one household's rate. Newly purchased homes are often reassessed to sale price, so a buyer's first bill can run above it. Data & method