In Multnomah County, Oregon, which covers part of West Haven-Sylvan, we have measured 2,955 parcels on septic and 207,636 on sewer. That is a county measurement. We do not hold a septic count for West Haven-Sylvan on its own and this page does not estimate one. West Haven-Sylvan also extends into Washington County, which are reported separately below and are not included in that figure.
West Haven-Sylvan is a census-designated place in Multnomah and Washington Counties, Oregon. The Census Bureau puts its internal point at 45.516439, -122.765448 and its land area at 2.24 square miles. Septic permitting and record keeping happen at the county level, not the census-designated place level, which is why every figure below is attributed to the county and linked back to the county page it came from.
| County | Records we hold | Parcels on septic | Parcels on sewer | County records portal | Searchable without an account |
|---|---|---|---|---|---|
| Multnomah County | 5,457 | 2,955 | 207,636 | county portal | account or login required |
| Washington County | 0 | 10,442 | 134,730 | county portal | account or login required |
We hold 5,457 septic records for Multnomah County, Oregon. That is a substantial partial collection rather than a complete one, so a West Haven-Sylvan property may or may not appear in it, and the county archive remains the authority. The county is predominantly sewered: only 2,955 of 210,591 classified parcels are on septic. Septic properties near West Haven-Sylvan are the exception, which is exactly why owners often do not know they have one. The county publishes a records portal, but reaching the documents needs an account or a login, so budget for that step rather than expecting an open search.
Septic is one subject with very different jobs inside it. These go straight to the page that does yours.
| If you are a | Go to | Because it covers |
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No. We measure septic and sewer at parcel level and roll it up by county. In Multnomah County, Oregon, which covers part of West Haven-Sylvan, we have measured 2,955 parcels on septic and 207,636 on sewer. That is a county measurement. We do not hold a septic count for West Haven-Sylvan on its own and this page does not estimate one. West Haven-Sylvan also extends into Washington County, which are reported separately below and are not included in that figure.
West Haven-Sylvan is in Multnomah and Washington Counties, Oregon.
From the Census ZCTA-to-place relationship file, with the share of West Haven-Sylvan’s land area that falls in each. A ZIP is not a place boundary and the two only ever partly agree, which is exactly why both pages exist.
Straight-line distance from the Census internal point of West Haven-Sylvan.
Parcel Perfect generates a code-shaped septic design and as-built style drawing for a parcel from the records and site data we hold, and shows every parcel we have classified as septic or sewer on one map. Both are open to use for any parcel in Multnomah and Washington Counties, Oregon.