We found 38 public water systems in Big Stone county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ortonville | Ortonville | 1,916 | 0 | 7 |
| Graceville | Graceville | 565 | 0 | 2 |
| Clinton | Clinton | 450 | 0 | 3 |
| Beardsley | Beardsley | 231 | 0 | 4 |
| Trinity Evangelical Lutheran Church | County of Big Stone | 125 | 0 | 0 |
| Odessa | Odessa | 113 | 0 | 0 |
| Siloah Lutheran Church | County of Big Stone | 110 | 0 | 0 |
| Big Stone Camp For Christ | County of Big Stone | 100 | 0 | 0 |
| Lakeshore Rv Park | County of Big Stone | 100 | 0 | 0 |
| Mallard Point | County of Big Stone | 80 | 0 | 0 |
| Club 7-75 | County of Big Stone | 80 | 0 | 0 |
| Lismore Colony | County of Big Stone | 77 | 0 | 0 |
| Big Stone Hutterite | County of Big Stone | 75 | 0 | 0 |
| Big Stone Lake State Park | County of Big Stone | 67 | 0 | 0 |
| Eidskog Lutheran Church | County of Big Stone | 55 | 0 | 0 |
| Graceville Golf Club | County of Big Stone | 50 | 0 | 0 |
| Artichoke Lake Baptist Church | County of Big Stone | 45 | 0 | 0 |
| Rustling Elms Resort | County of Big Stone | 36 | 0 | 0 |
| Correll | Correll | 32 | 0 | 0 |
| Johnson | Johnson | 32 | 0 | 0 |
| Big Stone National Wildlife Refuge | County of Big Stone | 30 | 0 | 0 |
| Barry | County of Big Stone | 28 | 0 | 0 |
| Foster Lodge-supper Club | County of Big Stone | 25 | 0 | 0 |
| Wally's Trailer Court | County of Big Stone | 25 | 0 | 0 |
| Valley Hai Supper Club | County of Big Stone | 25 | 0 | 0 |
| Big Stone Camp For Christ | County of Big Stone | 25 | 0 | 0 |
| Sioux Historic Park | County of Big Stone | 25 | 0 | 0 |
| Ponderosa Trailer Kamp | County of Big Stone | 25 | 0 | 0 |
| Speedway Gardens | County of Big Stone | 25 | 0 | 0 |
| Big Stone Lake State Park | County of Big Stone | 25 | 0 | 0 |
| Lakeview Resort | County of Big Stone | 25 | 0 | 0 |
| Pat Kaphaun Airport | County of Big Stone | 25 | 0 | 0 |
| Groceville Gun Club | County of Big Stone | 25 | 0 | 0 |
| Big Stone Canning Company | County of Big Stone | 25 | 0 | 0 |
| Little Joe | County of Big Stone | 25 | 0 | 0 |
| Lagoona Beach Resort | County of Big Stone | 25 | 0 | 0 |
| Lagoona Beach Supper Club | County of Big Stone | 25 | 0 | 0 |
| Toqua County Park | County of Big Stone | 25 | 0 | 0 |