We found 8 public water systems in Tripp county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Tripp County Water User District | Hamill, Winner | 4,765 | 0 | 57 |
| Winner | Winner | 3,100 | 0 | 12 |
| Colome | Colome | 296 | 0 | 31 |
| Witten | County of Tripp | 110 | 0 | 0 |
| Star Prairie Elementary School | Winner | 28 | 0 | 0 |
| Covered Wagon Steakhouse | County of Tripp | 25 | 0 | 0 |
| Club 44 | County of Tripp | 25 | 0 | 0 |
| Dot Rest Area 418b-brandon Springs | County of Tripp | 25 | 0 | 0 |