In Kitsap County, Washington, which covers Bainbridge Island, we have measured 26,305 parcels on septic and 52,943 on sewer. That is a county measurement. We do not hold a septic count for Bainbridge Island on its own and this page does not estimate one.
Bainbridge Island is a city in Kitsap County, Washington. The Census Bureau puts its internal point at 47.642487, -122.507764 and its land area at 27.61 square miles. Septic permitting and record keeping happen at the county level, not the city 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 |
|---|---|---|---|---|---|
| Kitsap County | 185,502 | 26,305 | 52,943 | county portal | no account needed |
Kitsap County, Washington is one of the more heavily documented counties in our collection: we hold 185,502 septic records for it, so the odds that a specific Bainbridge Island address already has a filed document we can point you at are good. The county is genuinely mixed: 26,305 of 79,248 classified parcels are on septic and the rest are sewered. Which side of that line a Bainbridge Island address falls on is worth establishing before anything else. The county publishes a records portal that we were able to search without creating an account, which makes checking a specific parcel something you can do yourself in a few minutes.
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 Bainbridge Island | keeping the system you have working |
| Buyer or seller | Buying or selling in Bainbridge Island | what to pull and check before closing |
| Realtor | Buying or selling in Bainbridge Island | the same records a seller needs on file |
| Designer or engineer | Septic design in Bainbridge Island | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Bainbridge Island | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Bainbridge Island | tank access, lids and service interval |
| Inspector | Septic inspection in Bainbridge Island | what gets checked and what a failure means |
| Land investor | Septic installation in Bainbridge Island | 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 Kitsap County, Washington, which covers Bainbridge Island, we have measured 26,305 parcels on septic and 52,943 on sewer. That is a county measurement. We do not hold a septic count for Bainbridge Island on its own and this page does not estimate one.
Bainbridge Island is in Kitsap County, Washington.
From the Census ZCTA-to-place relationship file, with the share of Bainbridge Island’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 Bainbridge Island.
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 Kitsap County, Washington.