We found 34 public water systems in Rock county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Luverne | Luverne | 4,709 | 0 | 3 |
| Rock County Rural Water System | Luverne | 2,256 | 0 | 4 |
| Hills | Hills | 686 | 0 | 1 |
| Beaver Creek Info Ctr/rest Area Mndot | County of Rock | 300 | 0 | 0 |
| Beaver Creek | Beaver Creek | 297 | 0 | 1 |
| Magnolia | Magnolia | 222 | 0 | 6 |
| Blue Mounds State Park | County of Rock | 220 | 0 | 10 |
| Hardwick | Hardwick | 198 | 0 | 0 |
| Steen | Steen | 180 | 0 | 2 |
| Kenneth | Kenneth | 68 | 0 | 0 |
| Rock Co Rural Water | County of Rock | 25 | 0 | 0 |
| Hills Rez Park | County of Rock | 25 | 0 | 0 |
| Luverne Gun Club | County of Rock | 25 | 0 | 0 |
| Lees Skelly Service | County of Rock | 25 | 0 | 0 |
| Sw Mn Farmers Co-op, Harvest States | County of Rock | 25 | 0 | 0 |
| Interpretive Center | County of Rock | 25 | 0 | 0 |
| Picnic Area | County of Rock | 25 | 0 | 0 |
| Spring | County of Rock | 25 | 0 | 0 |
| Blue Mound Inn | County of Rock | 25 | 0 | 0 |
| Midwest Auto | County of Rock | 25 | 0 | 0 |
| Rock County Sports Club | County of Rock | 25 | 0 | 0 |
| Kenneth Town Hall | County of Rock | 25 | 0 | 0 |
| Kenneth Lutheran Church | County of Rock | 25 | 0 | 0 |
| Cochrane Fertilizer | County of Rock | 25 | 0 | 0 |
| Kenneth Post Office | County of Rock | 25 | 0 | 0 |
| Kenneth Grocery | County of Rock | 25 | 0 | 0 |
| Kenneth Bar | County of Rock | 25 | 0 | 0 |
| John | County of Rock | 25 | 0 | 0 |
| Kenneth Garage | County of Rock | 25 | 0 | 0 |
| State Bank Of Kenneth | County of Rock | 25 | 0 | 0 |
| Vande Velde Hardware | County of Rock | 25 | 0 | 0 |
| Luverne Country Club | County of Rock | 25 | 0 | 0 |
| Blue Mound Inn | County of Rock | 25 | 0 | 0 |
| Campground | County of Rock | 25 | 0 | 0 |