We found 23 public water systems in Sumner county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Wellington, City Of | Wellington | 7,889 | 0 | 51 |
| Mulvane, City Of | Mulvane | 6,316 | 0 | 16 |
| Belle Plaine, City Of | Belle Plaine | 1,598 | 0 | 24 |
| Sumner Co Rwd 5 | Conway Springs | 1,429 | 0 | 64 |
| Conway Springs, City Of | Conway Springs | 1,224 | 0 | 87 |
| Sumner Co Rwd 4 | Arkansas City | 1,157 | 0 | 8 |
| Caldwell, City Of | Caldwell | 1,035 | 0 | 0 |
| Oxford, City Of | Oxford | 1,017 | 0 | 2 |
| Sumner Co Rwd 2 | Wellington | 495 | 0 | 39 |
| Argonia, City Of | Argonia | 482 | 0 | 112 |
| South Haven, City Of | South Haven | 346 | 0 | 11 |
| Sumner Co Rwd 1 | Wellington | 280 | 0 | 2 |
| Geuda Springs, City Of | Geuda Springs | 183 | 0 | 17 |
| Sumner Co Rwd 6 | Oxford | 143 | 0 | 2 |
| Boudreux`s Burger Barn | Peck | 125 | 0 | 26 |
| Mayfield, City Of | Mayfield | 109 | 0 | 0 |
| Suppesville Coastal | Milton | 100 | 0 | 0 |
| Sumner Co Rwd 3 | Wellington | 80 | 0 | 0 |
| Prairie Schooner Mobile Home Court | Mulvane | 50 | 0 | 0 |
| Sumner Co Rwd 7 | Caldwell | 25 | 0 | 0 |
| Belle Plaine - Kta | Wellington | 25 | 0 | 0 |
| Suppesville Golf Course And Restaurant | Milton | 0 | 0 | 0 |
| Mulvane Mobile Home Park | Mulvane | 0 | 0 | 0 |