ZIP 97225 falls in Washington County, Oregon, where we hold 10,442 parcels measured as septic county-wide and 134,730 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 97225.
ZCTA 97225 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Washington County, Oregon | 99% | — | 10,442 | 134,730 |
| Multnomah County, Oregon | 1% | 5,457 | 2,955 | 207,636 |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We hold 10,442 parcels measured as septic for Washington County, Oregon as a whole, not broken out by ZIP.
ZIP 97225 spans 2 counties: Washington County, Oregon, Multnomah County, Oregon.