City · Washington County
Property taxes in Gaston
Tax year 2025-26
- Kind
- City
- County
- Washington County
- A typical $600,000 home
- $5,050 a year (most homes here: $4,150 to $6,050)
- A new $600,000 home
- About $6,300 a year once fully taxed (the county's new-home ratio, 0.538); the first bill after it is built may cover only the land
- Taxed value, typical home
- 43% of market value (most homes 36% to 52%)
- Measure 5 cap
- Trims almost no bills here
- Tax rate
- $19.5201 per $1,000 of taxed value (tax code area 511.09)
- Homes counted
- 196
- Look up a home
- Washington County's property records
Estimates for tax year 2025-26, worked out from every home's own taxed and market values in Metro's records (2026-07-17) and the county's rate table, with the Measure 5 cap applied home by home. A listing shows a particular home's current bill, and in Oregon that bill stays with the house when it is sold. Property Tax Compare works the figures out at any price.
What the rate pays for
All homes here are in tax code area 511.09. Bonds are outside the Measure 5 cap; permanent rates and local options are inside it.
| What it pays for | District | Kind | Per $1,000 of taxed value |
|---|---|---|---|
| Schools | Gaston School District | permanent rate | $5.0494 |
| Schools | Gaston School District | bond | $1.8068 |
| Community college | Portland Community College | bond | $0.3519 |
| Community college | Portland Community College | permanent rate | $0.2828 |
| Education service district | NW Regional ESD | permanent rate | $0.1538 |
| City | City of Gaston | permanent rate | $6.6146 |
| County | Washington County | permanent rate | $2.2484 |
| County | Washington County | local option | $0.6900 |
| County | Washington County | bond | $0.0602 |
| Fire and rescue | Gaston RFPD | permanent rate | $2.1021 |
| Water, sewer and flood | Tualatin Soil & Water | permanent rate | $0.0900 |
| Port of Portland | Port of Portland | permanent rate | $0.0701 |
| Total | Code area 511.09, Washington County | $19.5201 |
Schools here
Gaston Elementary School · Gaston Jr/Sr High School
Schools located in this place, from Explore Schools; which school serves a home is set by its district.
The figures on this page are estimates for comparing areas. They are not a tax bill, an appraisal, or tax, legal or financial advice. They come from public records: Metro's Regional Land Information System and the tax rate tables of Washington, Multnomah and Clackamas counties, for the tax year shown. Public records can contain mistakes, and rates change every year as voters approve bonds and levies. Your real tax depends on the home's own assessed value, any exemptions or special assessments, and the county's final figures. Before you rely on any figure, check it with the county assessor or a tax professional. Jen is a licensed Oregon real estate broker, not a tax adviser.