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 |
| Ice Cracking Resort | Ponsford, MN | 56 | 13 | — |
| DNR Regional Headquarters | New Ulm, MN | 56 | 0 | — |
| Rockwood Lodge & Outfitters | Grand Marais, MN | 56 | 29 | — |
| Lake Darling Resort | Alexandria, MN | 56 | 0 | — |
| Minobimaadiziwin Hotel | Onamia, MN | 56 | 0 | — |
| Maple Island Resort | Glenwood, MN | 56 | 7 | — |
| Voyageur Park Lodge | Ray, MN | 56 | 12 | — |
| Neuhof Hutterian Brethren | Mountain Lake, MN | 55 | 16 | — |
| Anchor Bay Park | Baudette, MN | 55 | 55 | — |
| Pokegama Estates Community Well | Pine City, MN | 55 | 16 | — |
| Northrop Grumman Innovation Systems Inc. | Elk River, MN | 55 | 8 | — |
| MW Properties LLC | Wyoming, MN | 55 | 18 | — |
| Ham Lake Resort | Ham Lake, MN | 55 | 7 | — |
| Tamarac Bay Resort | Rochert, MN | 55 | 0 | — |
| Horseshoe Resort | Cass Lake, MN | 55 | 0 | — |
| Blackduck Municipal Golf Course | Blackduck, MN | 55 | 0 | — |
| Bethel Lutheran Church | Bemidji, MN | 55 | 7 | — |
| Midwest Machinery Company | Sauk Rapids, MN | 55 | 0 | — |
| Wyoming Machine, Inc. | Stacy, MN | 55 | 3 | — |
| Crow Wing Power | Brainerd, MN | 55 | 0 | — |
| Christ Community Church | Nisswa, MN | 55 | 3 | — |
| West Moe Lutheran Church | Brandon, MN | 55 | 21 | — |
| Enzymology Research Center, Inc. | Miltona, MN | 55 | 0 | — |
| Oldcastle Infrastructure | Cannon Falls, MN | 55 | 0 | — |
| Coldwell Banker Burnet Realty, Inc. | Excelsior, MN | 55 | 14 | — |
| Ferndale Golf Course, LLC | Rushford, MN | 55 | 14 | — |
| Bowstring Shores Resort | Deer River, MN | 55 | 0 | — |
| Dickerson's Resort | Spicer, MN | 55 | 0 | — |
| New Horizon Resort and Lodge | Waubun, MN | 55 | 0 | — |
| Meeker County-Darwin/Dassel Park | Litchfield, MN | 55 | 0 | — |
| Safe Basements | Litchfield, MN | 55 | 0 | — |
| Marshall Lutheran Church | Adams, MN | 55 | 7 | — |
| Akkerman Manufacturing, Inc. | Brownsdale, MN | 55 | 4 | — |
| Six Mile Grove Lutheran Church | Lyle, MN | 55 | 7 | — |
| American Fence Company | Rochester, MN | 55 | 0 | — |
| Hagen's Point | Underwood, MN | 55 | 10 | — |
| St. Paul Lutheran Church | Fergus Falls, MN | 55 | 0 | — |
| Structural Wood Corporation | Vadnais Heights, MN | 55 | 6 | — |
| Shangri-La Resort | Orr, MN | 55 | 36 | — |
| Ash Riviera | Orr, MN | 55 | 7 | — |
| Union Trail Brewing | Belle Plaine, MN | 55 | 18 | — |
| Hope Lutheran Church | Big Lake, MN | 55 | 0 | — |
| Holy Cross School | Kimball, MN | 55 | 9 | — |
| St. Wendel Ball Park | Avon, MN | 55 | 0 | — |
| Minnesota Agricultural Interpretive Ctr. | Waseca, MN | 55 | 0 | — |
| Klossner Water Association | New Ulm, MN | 54 | 13 | — |
| Hatfield Municipal Water Supply | Hatfield, MN | 54 | 16 | — |
| Bad Medicine Resort and Campground | Ponsford, MN | 54 | 7 | — |
| Serenity Bay Resort | Detroit Lakes, MN | 54 | 7 | — |
| Faith Free Lutheran Church and School | Detroit Lakes, MN | 54 | 5 | — |