We found 15 public water systems in Dewey county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Seiling | County of Dewey | 860 | 0 | 31 |
| Vici | County of Dewey | 668 | 0 | 28 |
| Leedey | County of Dewey | 500 | 0 | 0 |
| Leedey | County of Dewey | 436 | 0 | 3 |
| Taloga | County of Dewey | 372 | 0 | 17 |
| Camargo Rwd #2 | County of Dewey | 150 | 0 | 9 |
| Dewey Co Rwd #1 | County of Dewey | 129 | 0 | 52 |
| Country Inn Bar | County of Dewey | 50 | 0 | 0 |
| Red's Grocery | County of Dewey | 25 | 0 | 0 |
| Morse Grocery & Market | County of Dewey | 25 | 0 | 0 |
| Morris General Store | County of Dewey | 25 | 0 | 0 |
| Kauk Store | County of Dewey | 25 | 0 | 0 |
| Oakwood Truckstop | County of Dewey | 25 | 0 | 0 |
| Oakwood Truckstop | County of Dewey | 25 | 0 | 0 |
| Dot Taloga Road Park | County of Dewey | 10 | 0 | 0 |