In Island County, Washington, which covers Coupeville, we have measured 26,796 parcels on septic and 8,295 on sewer. That is a county measurement. We do not hold a septic count for Coupeville on its own and this page does not estimate one.
Coupeville is a town in Island County, Washington. The Census Bureau puts its internal point at 48.218795, -122.679466 and its land area at 1.27 square miles. Septic permitting and record keeping happen at the county level, not the town 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 |
|---|---|---|---|---|---|
| Island County | 12,031 | 26,796 | 8,295 | county portal | account or login required |
We hold 12,031 septic records for Island County, Washington. That is a substantial partial collection rather than a complete one, so a Coupeville property may or may not appear in it, and the county archive remains the authority. Of the parcels we have classified in the county, most are on septic rather than sewer (26,796 of 35,091). A property near Coupeville is more likely than not to have its own system. 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 Coupeville | keeping the system you have working |
| Buyer or seller | Buying or selling in Coupeville | what to pull and check before closing |
| Realtor | Buying or selling in Coupeville | the same records a seller needs on file |
| Designer or engineer | Septic design in Coupeville | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Coupeville | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Coupeville | tank access, lids and service interval |
| Inspector | Septic inspection in Coupeville | what gets checked and what a failure means |
| Land investor | Septic installation in Coupeville | whether raw land can take a system at all |
No. We measure septic and sewer at parcel level and roll it up by county. In Island County, Washington, which covers Coupeville, we have measured 26,796 parcels on septic and 8,295 on sewer. That is a county measurement. We do not hold a septic count for Coupeville on its own and this page does not estimate one.
Coupeville is in Island County, Washington.
From the Census ZCTA-to-place relationship file, with the share of Coupeville’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 Coupeville.
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 Island County, Washington.