We found 17 public water systems in Castro county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Dimmitt Municipal Water System | County of Castro | 4,393 | 0 | 3 |
| Hart Municipal Water System | County of Castro | 1,198 | 0 | 9 |
| Us Ar Cor Eng-cedron Creek Par | County of Castro | 1,000 | 0 | 0 |
| Hart Independent School District | County of Castro | 625 | 0 | 0 |
| Hog Creek Water Supply Corp | County of Castro | 500 | 0 | 0 |
| Nazareth Municipal Water System | County of Castro | 360 | 0 | 21 |
| Parkview Mobile Home Park | County of Castro | 350 | 0 | 0 |
| Circlecafe | County of Castro | 200 | 0 | 0 |
| Skywater Wsc | County of Castro | 160 | 0 | 5 |
| Best View Water System | County of Castro | 100 | 0 | 0 |
| Uscoe-morgan Lakeside Pk | County of Castro | 100 | 0 | 0 |
| H & S Produce | County of Castro | 75 | 0 | 0 |
| Henrys Drivein & House Of Beau | County of Castro | 45 | 0 | 0 |
| Snuff City West | County of Castro | 26 | 0 | 0 |
| Summerfield Mobile Manor | County of Castro | 25 | 0 | 0 |
| Flagg Farmers Gin | County of Castro | 24 | 0 | 0 |
| Hollums East Acres Ws | County of Castro | 10 | 0 | 0 |