We found 74 public water systems in Cottonwood county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Red Rock Rural Water System | Jeffers | 7,897 | 0 | 2 |
| Windom | Windom | 4,646 | 0 | 2 |
| Mountain Lake | Mountain Lake | 2,100 | 0 | 1 |
| Westbrook | Westbrook | 739 | 0 | 2 |
| Jeffers | Jeffers | 369 | 0 | 2 |
| Prime Pork | County of Cottonwood | 350 | 0 | 3 |
| Storden | Storden | 215 | 0 | 2 |
| Amo Lutheran Church | County of Cottonwood | 130 | 0 | 6 |
| Bingham Lake | Bingham Lake | 126 | 0 | 1 |
| 71 Club | County of Cottonwood | 75 | 0 | 0 |
| Land O' Lakes, Inc | County of Cottonwood | 60 | 0 | 0 |
| Delft | Delft | 58 | 0 | 0 |
| Neuhof Hutterian Brethren | County of Cottonwood | 55 | 0 | 0 |
| Bartel's Coffee House With Style | County of Cottonwood | 50 | 0 | 0 |
| Talcot Lake County Park/campground | County of Cottonwood | 50 | 0 | 0 |
| Mountain Lake Golf Club | County of Cottonwood | 50 | 0 | 0 |
| Red Rock Falls County Park | County of Cottonwood | 25 | 0 | 0 |
| Windom Country Club | County of Cottonwood | 25 | 0 | 0 |
| Windom Municipal Airport | County of Cottonwood | 25 | 0 | 0 |
| Balin Lumber Company | County of Cottonwood | 25 | 0 | 0 |
| Koep Implement Company | County of Cottonwood | 25 | 0 | 0 |
| Driftwood Supper Club | County of Cottonwood | 25 | 0 | 0 |
| Kolash Implement Company | County of Cottonwood | 25 | 0 | 0 |
| Horkey Trailer Sales | County of Cottonwood | 25 | 0 | 0 |
| Cottonwood Cty Vet Clinic | County of Cottonwood | 25 | 0 | 0 |
| Torks Cafe | County of Cottonwood | 25 | 0 | 0 |
| American Legion Post 206 | County of Cottonwood | 25 | 0 | 0 |
| St Olafs Lutheran Church | County of Cottonwood | 25 | 0 | 0 |
| Windom Sale Barn | County of Cottonwood | 25 | 0 | 0 |
| Bergen Bar | County of Cottonwood | 25 | 0 | 0 |
| Dick's Mobile Home Court | County of Cottonwood | 25 | 0 | 0 |
| Frantsen's Trailer Park | County of Cottonwood | 25 | 0 | 0 |
| Island Park | County of Cottonwood | 25 | 0 | 0 |
| Legion Supper Club | County of Cottonwood | 25 | 0 | 0 |
| Midway Trailer Court | County of Cottonwood | 25 | 0 | 0 |
| High Water Lutheran Church | County of Cottonwood | 25 | 0 | 0 |
| Westbrook Trailer Court I | County of Cottonwood | 25 | 0 | 0 |
| Westbrook Trailer Court Ii | County of Cottonwood | 25 | 0 | 0 |
| Windom Lions Club | County of Cottonwood | 25 | 0 | 0 |
| Lord Of Glory Lutheran Church | County of Cottonwood | 25 | 0 | 0 |
| Bonnie Jean's Cafe | County of Cottonwood | 25 | 0 | 0 |
| Wetland Mngmnt Dist-us Fish/wildlife Ser | County of Cottonwood | 25 | 0 | 0 |
| Jeffers Petroglyphs | Comfrey | 25 | 0 | 0 |
| Chucks Place | County of Cottonwood | 25 | 0 | 0 |
| New Vision Co-op | County of Cottonwood | 25 | 0 | 0 |
| South Dutch Charlie Park | County of Cottonwood | 25 | 0 | 0 |
| Shalom Hill Farm | County of Cottonwood | 25 | 0 | 0 |
| Swan Lake Day Center Acty | County of Cottonwood | 25 | 0 | 0 |
| Mountain Park | County of Cottonwood | 25 | 0 | 0 |
| Jeffers Shield Co | County of Cottonwood | 25 | 0 | 0 |
| Cargill Elevator | County of Cottonwood | 25 | 0 | 0 |
| Highway Rest Area | County of Cottonwood | 25 | 0 | 0 |
| Johnson Motel | County of Cottonwood | 25 | 0 | 0 |
| Skateland Roller Drome | County of Cottonwood | 25 | 0 | 0 |
| Chateau Motel | County of Cottonwood | 25 | 0 | 0 |
| Wipf Livestock | County of Cottonwood | 25 | 0 | 0 |
| Jeffers Baptist Church | County of Cottonwood | 25 | 0 | 0 |
| Schroeders Locker | County of Cottonwood | 25 | 0 | 0 |
| Windom Gun Club | County of Cottonwood | 25 | 0 | 0 |
| Bingham Lake Meth Church | County of Cottonwood | 25 | 0 | 0 |
| Bingham Lake City Park | County of Cottonwood | 25 | 0 | 0 |
| Highwater Lutheran Church | County of Cottonwood | 25 | 0 | 0 |
| Highwater Township Hall | County of Cottonwood | 25 | 0 | 0 |
| Majerris Body Shop | County of Cottonwood | 25 | 0 | 0 |
| Gave Motor Sales | County of Cottonwood | 25 | 0 | 0 |
| Windom Forklift | County of Cottonwood | 25 | 0 | 0 |
| John Paulson Ins | County of Cottonwood | 25 | 0 | 0 |
| Windom Automated Systems | County of Cottonwood | 25 | 0 | 0 |
| Culligan Soft Water | County of Cottonwood | 25 | 0 | 0 |
| Kdom Radio | County of Cottonwood | 25 | 0 | 0 |
| South Dutch Charlie County Campground | County of Cottonwood | 25 | 0 | 0 |
| Immanuel Mennonite Church | County of Cottonwood | 25 | 0 | 0 |
| Carson Mennonite Breth Ch | County of Cottonwood | 25 | 0 | 0 |
| Frantsen Mobile Home Park | County of Cottonwood | 17 | 0 | 0 |