In Grant County, Wisconsin, which covers Platteville, we have measured 9,500 parcels on septic and 12,132 on sewer. That is a county measurement. We do not hold a septic count for Platteville on its own and this page does not estimate one.
Platteville is a city in Grant County, Wisconsin. The Census Bureau puts its internal point at 42.727923, -90.468103 and its land area at 6.18 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 |
|---|---|---|---|---|---|
| Grant County | 0 | 9,500 | 12,132 | county portal | no account needed |
We have not yet collected septic documents from Grant County, Wisconsin, so for a Platteville 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: 9,500 of 21,632 classified parcels are on septic and the rest are sewered. Which side of that line a Platteville 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 Platteville | keeping the system you have working |
| Buyer or seller | Buying or selling in Platteville | what to pull and check before closing |
| Realtor | Buying or selling in Platteville | the same records a seller needs on file |
| Designer or engineer | Septic design in Platteville | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Platteville | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Platteville | tank access, lids and service interval |
| Inspector | Septic inspection in Platteville | what gets checked and what a failure means |
| Land investor | Septic installation in Platteville | 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 Grant County, Wisconsin, which covers Platteville, we have measured 9,500 parcels on septic and 12,132 on sewer. That is a county measurement. We do not hold a septic count for Platteville on its own and this page does not estimate one.
Platteville is in Grant County, Wisconsin.
From the Census ZCTA-to-place relationship file, with the share of Platteville’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 Platteville.
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 Grant County, Wisconsin.