In Walla Walla County, Washington, which covers Walla Walla, we have measured 6,181 parcels on septic and 13,089 on sewer. That is a county measurement. We do not hold a septic count for Walla Walla on its own and this page does not estimate one.
Walla Walla is a city in Walla Walla County, Washington. The Census Bureau puts its internal point at 46.067006, -118.337033 and its land area at 14.07 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 |
|---|---|---|---|---|---|
| Walla Walla County | 0 | 6,181 | 13,089 | county portal | account or login required |
We have not yet collected septic documents from Walla Walla County, Washington, so for a Walla Walla 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 genuinely mixed: 6,181 of 19,270 classified parcels are on septic and the rest are sewered. Which side of that line a Walla Walla address falls on is worth establishing before anything else. 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 Walla Walla | keeping the system you have working |
| Buyer or seller | Buying or selling in Walla Walla | what to pull and check before closing |
| Realtor | Buying or selling in Walla Walla | the same records a seller needs on file |
| Designer or engineer | Septic design in Walla Walla | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Walla Walla | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Walla Walla | tank access, lids and service interval |
| Inspector | Septic inspection in Walla Walla | what gets checked and what a failure means |
| Land investor | Septic installation in Walla Walla | whether raw land can take a system at all |
These are real businesses we hold an address for, not a ranked or paid list. We take no fee and list nobody preferentially. Confirm current licensing with your county or state before hiring.
With an address in Walla Walla itself
| Business | Town on file | Phone | Rating |
|---|---|---|---|
| Aqua Test Inc | Walla Walla | (425) 432-9360 | — |
No. We measure septic and sewer at parcel level and roll it up by county. In Walla Walla County, Washington, which covers Walla Walla, we have measured 6,181 parcels on septic and 13,089 on sewer. That is a county measurement. We do not hold a septic count for Walla Walla on its own and this page does not estimate one.
Walla Walla is in Walla Walla County, Washington.
From the Census ZCTA-to-place relationship file, with the share of Walla Walla’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 Walla Walla.
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 Walla Walla County, Washington.