We found 18 public water systems in Cowley county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Winfield, City Of | Winfield | 12,284 | 19 | 10 |
| Arkansas City, City Of | Arkansas City | 12,063 | 46 | 6 |
| Cowley Co Rwd 3 | Arkansas City | 2,500 | 0 | 21 |
| Cowley Co Rwd 5 | Burden | 2,000 | 25 | 13 |
| Strother Field Airport Ind Park | Winfield | 1,534 | 0 | 4 |
| Cowley Co Rwd 1 | Arkansas City | 1,500 | 0 | 3 |
| Cowley Co Rwd 6 | Arkansas City | 792 | 0 | 2 |
| Udall, City Of | Udall | 727 | 0 | 8 |
| Cowley Co Rwd 2 | Winfield | 600 | 0 | 20 |
| Burden, City Of | Burden | 533 | 0 | 17 |
| Cowley Co Rwd 4 | Winfield | 500 | 0 | 2 |
| Cowley Co Rwd 7 | Rock | 300 | 0 | 12 |
| Dexter, City Of | Dexter | 274 | 0 | 7 |
| Atlanta, City Of | Atlanta | 192 | 0 | 22 |
| Cambridge, City Of | Cambridge | 83 | 0 | 0 |
| Cowley Co Rwd 8 | Winfield | 50 | 0 | 0 |
| Mid-america Resort | Arkansas City | 35 | 0 | 0 |
| Cl Co Wi | Pratt | 25 | 0 | 0 |