We found 9 public water systems in Oldham county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Oldham County Water District | Buckner | 22,819 | 22 | 7 |
| Lagrange Utilities Commission | La Grange | 9,801 | 25 | 2 |
| Goshen Water Utilities | County of Oldham | 5,877 | 0 | 0 |
| West Oldham Utilities | Louisville | 1,650 | 0 | 0 |
| Old Ky Home Boy Scout Counsel | Prospect | 200 | 0 | 0 |
| Louisville Yacht Club | Prospect | 100 | 0 | 0 |
| Tara Springs | Lagrange | 25 | 0 | 0 |
| Anita Spring Water Co | Lagrange | 25 | 0 | 0 |
| Sleepy Hollow Association | Prospect | 20 | 0 | 0 |