We found 16 public water systems in Nowata county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Nowata Municipal Authority | County of Nowata | 3,971 | 0 | 49 |
| Consolidated Rwd #1 Nowata And Rogers Co | Nowata | 1,612 | 0 | 2 |
| Nowata Co Rwd #7 | County of Nowata | 1,050 | 0 | 38 |
| South Coffeyville | County of Nowata | 790 | 0 | 10 |
| Elm Bend Rwd Inc | County of Nowata | 600 | 0 | 86 |
| Nowata Co Rw & S Dist #1 | County of Nowata | 500 | 0 | 13 |
| Delaware | County of Nowata | 456 | 0 | 88 |
| Nowata Co Rwd #6 | County of Nowata | 450 | 0 | 16 |
| Lenapah Public Works Authority | County of Nowata | 298 | 0 | 72 |
| Nowata County Rwd # 3 | County of Nowata | 225 | 0 | 8 |
| Nowata Co Rwd #2 | County of Nowata | 205 | 0 | 15 |
| Nowata Co Rwd #5 | County of Nowata | 70 | 0 | 0 |
| Coe Winganon Ramp | County of Nowata | 25 | 0 | 0 |
| Coe Double Creek Cove | County of Nowata | 25 | 0 | 0 |
| Linds Bait Shop | County of Nowata | 25 | 0 | 0 |
| Childers Store | County of Nowata | 25 | 0 | 0 |