In Winnebago County, Wisconsin, which covers Oshkosh, we have measured 7,359 parcels on septic and 49,347 on sewer. That is a county measurement. We do not hold a septic count for Oshkosh on its own and this page does not estimate one.
Oshkosh is a city in Winnebago County, Wisconsin. The Census Bureau puts its internal point at 44.023168, -88.56226 and its land area at 27.55 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 |
|---|---|---|---|---|---|
| Winnebago County | 0 | 7,359 | 49,347 | not published | — |
We have not yet collected septic documents from Winnebago County, Wisconsin, so for a Oshkosh 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 7,359 of 56,706 classified parcels are on septic. Septic properties near Oshkosh are the exception, which is exactly why owners often do not know they have one. We have not found a published online records portal for this county, which means the file is requested from the county directly rather than searched.
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 Oshkosh | keeping the system you have working |
| Buyer or seller | Buying or selling in Oshkosh | what to pull and check before closing |
| Realtor | Buying or selling in Oshkosh | the same records a seller needs on file |
| Designer or engineer | Septic design in Oshkosh | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Oshkosh | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Oshkosh | tank access, lids and service interval |
| Inspector | Septic inspection in Oshkosh | what gets checked and what a failure means |
| Land investor | Septic installation in Oshkosh | 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 Winnebago County, Wisconsin, which covers Oshkosh, we have measured 7,359 parcels on septic and 49,347 on sewer. That is a county measurement. We do not hold a septic count for Oshkosh on its own and this page does not estimate one.
Oshkosh is in Winnebago County, Wisconsin.
From the Census ZCTA-to-place relationship file, with the share of Oshkosh’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 Oshkosh.
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 Winnebago County, Wisconsin.