In Washington County, Oregon, which covers Dilley, we have measured 10,442 parcels on septic and 134,730 on sewer. That is a county measurement. We do not hold a septic count for Dilley on its own and this page does not estimate one.
Dilley is a census-designated place in Washington County, Oregon. The Census Bureau puts its internal point at 45.491714, -123.12227 and its land area at 0.75 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 |
|---|---|---|---|---|---|
| Washington County | 0 | 10,442 | 134,730 | county portal | account or login required |
We have not yet collected septic documents from Washington County, Oregon, so for a Dilley property the county's own file is currently the only route. This page is about getting you to it, not about pretending we hold something we do not. The county is predominantly sewered: only 10,442 of 145,172 classified parcels are on septic. Septic properties near Dilley 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 |
|---|---|---|
| Homeowner | Septic pumping in Dilley | keeping the system you have working |
| Buyer or seller | Buying or selling in Dilley | what to pull and check before closing |
| Realtor | Buying or selling in Dilley | the same records a seller needs on file |
| Septic pumper | Septic pumping in Dilley | tank access, lids and service interval |
| Inspector | Septic inspection in Dilley | what gets checked and what a failure means |
No. We measure septic and sewer at parcel level and roll it up by county. In Washington County, Oregon, which covers Dilley, we have measured 10,442 parcels on septic and 134,730 on sewer. That is a county measurement. We do not hold a septic count for Dilley on its own and this page does not estimate one.
Dilley is in Washington County, Oregon.
From the Census ZCTA-to-place relationship file, with the share of Dilley’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 Dilley.
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 Washington County, Oregon.