Public Water Systems
6,557 active public water systems in MN, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Frontier Public Access | International Falls, MN | 25 | 0 | — |
| Rainy Lake Oil | International Falls, MN | 25 | 0 | — |
| Nelson Park/Sault Rapids Access | International Falls, MN | 25 | 7 | — |
| Samuelson Park | International Falls, MN | 25 | 0 | — |
| Mizpah Liquor Store, Inc. | Mizpah, MN | 25 | 0 | — |
| Franz Jevne State Park | Waskish, MN | 25 | 0 | — |
| Birchdale Community Center | Birchdale, MN | 25 | 0 | — |
| Rainy Lake Vacation Campground | International Falls, MN | 25 | 0 | — |
| Bruce's 66 | Marietta, MN | 25 | 7 | — |
| St. Joseph Catholic School Water System | Ortonville, MN | 25 | 7 | — |
| Maxxed Out Guides | Rogers, MN | 25 | 1 | — |
| Our Place | Finland, MN | 25 | 0 | — |
| Friends of Finland | Finland, MN | 25 | 7 | — |
| Finland Forestry Station | Finland, MN | 25 | 0 | — |
| Baptism River Community Church | Finland, MN | 25 | 0 | — |
| Crosby Manitou State Park | Silver Bay, MN | 25 | 0 | — |
| Stonegate on Superior | Two Harbors, MN | 25 | 0 | — |
| Cliff Wold's Canoe Trip Outfitting Co. | Ely, MN | 25 | 0 | — |
| Finland Campground and Picnic Area | Silver Bay, MN | 25 | 7 | — |
| Farm Lake Outpost LLC | Ely, MN | 25 | 12 | — |
| Happy Wanderer | Isabella, MN | 25 | 0 | — |
| Timber Trail Lodge | Ely, MN | 25 | 287 | — |
| Castle Haven Cabins | Two Harbors, MN | 25 | 14 | — |
| Breezy on Lake Superior LLC | Duluth, MN | 25 | 0 | — |
| Anchor Point Two Harbors | Duluth, MN | 25 | 0 | — |
| Earthwood Inn | Two Harbors, MN | 25 | 7 | — |
| Trestle Inn | Finland, MN | 25 | 21 | — |
| Knotted Pine Inn & Tavern Inc. | Isabella, MN | 25 | 0 | — |
| Birch Lake Campground USFS | Ely, MN | 25 | 28 | — |
| Fall Lake Campground USFS | Ely, MN | 25 | 34 | — |
| South Kawishiwi Campground USFS | Ely, MN | 25 | 27 | — |
| McDougal Lakes Rec Area-Campground USFS | Ely, MN | 25 | 12 | — |
| Ninemile Lake Campground USFS | Ely, MN | 25 | 7 | — |
| Pen Mar All Ter Campsite | Two Harbors, MN | 25 | 0 | — |
| Knife River Marina | Two Harbors, MN | 25 | 0 | — |
| Our Savior Lutheran Church | Two Harbors, MN | 25 | 0 | — |
| Baptism River/Tettegouche State Park | St. Paul, MN | 25 | 5 | — |
| Moose Bay Company | Ely, MN | 25 | 8 | — |
| Northern Lakes Canoe Base | Duluth, MN | 25 | 7 | — |
| Outdoor Learning Center | Ely, MN | 25 | 36 | — |
| Snow Shoe Trail Lodge | St. Paul, MN | 25 | 7 | — |
| Silver Bay Golf Course | Silver Bay, MN | 25 | 0 | — |
| Sullivan Lake Campground | Two Harbors, MN | 25 | 7 | — |
| Eckbeck Campground | Silver Bay, MN | 25 | 0 | — |
| Split Rock Lighthouse State Park | Two Harbors, MN | 25 | 0 | — |
| Gooseberry Falls State Park | St. Paul, MN | 25 | 0 | — |
| Tettegouche State Park | Silver Bay, MN | 25 | 14 | — |
| Finland Co-op | Finland, MN | 25 | 0 | — |
| Russ Kendall's Smoke House | Duluth, MN | 25 | 0 | — |
| Great! Lakes Candy Kitchen | Duluth, MN | 25 | 0 | — |