We found 18 public water systems that could serve the same population as Nisland (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Belle Fourche | Belle Fourche | 5,594 | 0 | 113 |
| Butte-meade Swd-bean Well | Newell | 1,448 | 0 | 35 |
| Newell | Newell | 603 | 0 | 20 |
| Butte-meade Swd-vale Well | Newell | 325 | 0 | 0 |
| Sandstone Water-west Addition | Belle Fourche | 300 | 0 | 3 |
| Hay Creek Water Company | Belle Fourche | 300 | 0 | 18 |
| Vale Sanitary District | Vale | 120 | 0 | 0 |
| Country Club Property Owners - Bf | County of Butte | 84 | 0 | 0 |
| Oak Valley Trailer Court | County of Butte | 74 | 0 | 0 |
| Prairie Hills Ranchettes | County of Butte | 70 | 0 | 0 |
| Fruitdale | Fruitdale | 64 | 0 | 0 |
| Riverside Mobile Home Court | Spearfish | 60 | 18 | 0 |
| Belle Fourche Livestock Exchange | Belle Fourche | 60 | 0 | 0 |
| Sunset Motel C/o Albert Lyons | Sunset Motel | 56 | 0 | 0 |
| Grandview Property Owners | County of Butte | 34 | 0 | 0 |
| Dot Rest Area 515a-center Of N | Castle Rock | 25 | 0 | 0 |
| Wilen Enterprises Water | Belle Fourche | 0 | 0 | 0 |
| Black Hills Water Distribution, Llc | Belle Fourche | 0 | 0 | 0 |