We found 19 public water systems in Nodaway county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Maryville | Maryville | 11,972 | 0 | 39 |
| Nodaway Co Pwsd 1 | Maryville | 6,140 | 0 | 2 |
| Burlington Junction | County of Nodaway | 587 | 0 | 9 |
| Hopkins | Hopkins | 532 | 0 | 6 |
| Ravenwood | Ravenwood | 450 | 0 | 15 |
| Skidmore | Skidmore | 284 | 0 | 9 |
| Barnard | Barnard | 248 | 0 | 3 |
| Conception Junction | County of Nodaway | 204 | 0 | 14 |
| Conception Abbey | Conception | 200 | 0 | 0 |
| Parnell | Parnell | 191 | 0 | 17 |
| Clearmont | Clearmont | 171 | 0 | 42 |
| Graham | Graham | 170 | 0 | 15 |
| Elmo | Elmo | 165 | 0 | 7 |
| South Nodaway R-iv Elem School | Guilford | 130 | 0 | 0 |
| Pumpkin Center Collins Corner | Pumpkin Center | 100 | 0 | 0 |
| Benedictine Convent | Clyde | 50 | 0 | 0 |
| Bluetop Standard Serv & Tavern | Bluetop Standar | 25 | 0 | 0 |
| Stateline Cafe | Stateline Cafe | 25 | 0 | 0 |
| Collins' Corner | County of Nodaway | 25 | 0 | 0 |