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Minnesota Tap Water Quality

EPA water quality data for 150 community water systems serving 677,347+ people in Minnesota. Click any system to see violations, lead testing results, and a safety grade.

Minnesota draws drinking water from both surface water (Mississippi River, Lake Superior) and groundwater aquifers. Naturally occurring radium and manganese are common in well water, while agricultural nitrate affects shallow aquifers in farming regions. PFAS contamination from 3M manufacturing in the east metro area is one of the largest such sites in the country.

Cities in Minnesota

MinneapolisSt. PaulRochesterBloomingtonDuluthBrooklyn ParkPlymouthWoodburyLakevilleMaple GroveBlaineSt. CloudEaganBurnsvilleEden PrairieCoon RapidsApple ValleyMinnetonkaEdinaSt. Louis ParkMankatoMoorheadShakopeeMaplewoodCottage GroveRichfieldRosevilleInver Grove HeightsBrooklyn CenterAndoverSavageFridleyOakdaleRamseyChaskaPrior LakeShoreviewOwatonnaAustinWinonaRosemountElk RiverChanhassenFaribaultWhite Bear LakeChamplinFarmingtonNew BrightonCrystalGolden ValleyHastingsColumbia HeightsNew HopeLino LakesWillmarWest St. PaulSouth St. PaulForest LakeNorthfieldOtsegoSartellStillwaterHopkinsSt. MichaelAlbert LeaAnokaRed WingHam LakeBuffaloHibbingHugoBemidjiHutchinsonRobbinsdaleMonticelloBrainerdAlexandriaNorth MankatoFergus FallsNew UlmWorthingtonSauk RapidsMarshallRogersMounds ViewWaconiaVadnais HeightsCloquetNorth St. PaulSt. PeterEast BethelLake ElmoBig LakeMendota HeightsGrand RapidsNorth BranchVictoriaLittle CanadaFairmontHermantown
Blaine Blaine, MN · 70,220 people · Groundwater Coon Rapids Coon Rapids, MN · 64,000 people · Groundwater Moorhead Moorhead, MN · 44,583 people · Surface Water Mankato Mankato, MN · 42,803 people · GWUDI Chaska Chaska, MN · 30,000 people · Groundwater Fridley Fridley, MN · 27,476 people · Groundwater Chanhassen Chanhassen, MN · 24,951 people · Groundwater Columbia Heights Columbia Heights, MN · 22,278 people · Surface Water Purchased Andover Andover, MN · 21,455 people · Groundwater Lino Lakes Lino Lakes, MN · 17,859 people · Groundwater Anoka Anoka, MN · 17,798 people · Groundwater Ramsey Ramsey, MN · 17,705 people · Groundwater Bemidji Bemidji, MN · 15,147 people · Groundwater Brainerd Brainerd, MN · 14,670 people · Groundwater New Ulm New Ulm, MN · 14,052 people · Groundwater Sauk Rapids Sauk Rapids, MN · 13,835 people · Groundwater Waconia Waconia, MN · 13,277 people · Groundwater Cloquet Cloquet, MN · 12,864 people · Groundwater Victoria Victoria, MN · 10,546 people · Groundwater Detroit Lakes Detroit Lakes, MN · 10,038 people · Groundwater Spring Lake Park Spring Lake Park, MN · 7,200 people · Groundwater North Branch North Branch, MN · 6,863 people · Groundwater Carver Carver, MN · 6,700 people · Groundwater Red Rock Rural Water System Jeffers, MN · 5,840 people · Groundwater Montevideo Montevideo, MN · 5,337 people · Groundwater Saint Francis St. Francis, MN · 5,200 people · Groundwater Circle Pines Circle Pines, MN · 5,075 people · Groundwater Lindstrom Lindstrom, MN · 4,938 people · Groundwater Dilworth Dilworth, MN · 4,918 people · Surface Water Purchased Windom Windom, MN · 4,646 people · Groundwater Watertown Watertown, MN · 4,550 people · Groundwater Wyoming Wyoming, MN · 3,990 people · Groundwater Centerville Centerville, MN · 3,962 people · Groundwater Norwood-Young America Norwood Young America, MN · 3,850 people · Groundwater Chisago City Chisago City, MN · 3,745 people · Groundwater Sleepy Eye Sleepy Eye, MN · 3,599 people · Groundwater Rush City Rush City, MN · 3,339 people · Groundwater Eagle Lake Eagle Lake, MN · 3,268 people · Groundwater Barnesville Barnesville, MN · 2,784 people · Groundwater Lexington Lexington, MN · 2,738 people · Groundwater Foley Foley, MN · 2,711 people · Groundwater Lake Crystal Lake Crystal, MN · 2,554 people · Groundwater Crosby Crosby, MN · 2,377 people · Groundwater Hawley Hawley, MN · 2,267 people · Groundwater Aitkin Aitkin, MN · 2,165 people · Groundwater Rice Rice, MN · 2,161 people · Groundwater Springfield Springfield, MN · 2,070 people · Groundwater Ortonville Ortonville, MN · 2,021 people · Groundwater Mountain Lake Mountain Lake, MN · 2,018 people · Groundwater Centennial Square Mobile Home Park Blaine, MN · 2,000 people · Groundwater Mayer Mayer, MN · 1,900 people · Groundwater Moose Lake Moose Lake, MN · 1,782 people · Groundwater Mapleton Mapleton, MN · 1,756 people · Groundwater Cologne Cologne, MN · 1,700 people · Groundwater Stacy Stacy, MN · 1,593 people · Groundwater Frazee Frazee, MN · 1,400 people · Groundwater Glyndon Glyndon, MN · 1,386 people · Groundwater Clara City Clara City, MN · 1,360 people · Groundwater Grand Marais Grand Marais, MN · 1,344 people · Surface Water Fridley Terrace Mobile Home Park Fridley, MN · 1,300 people · Groundwater MN Correctional Facility - Lino Lakes Lino Lakes, MN · 1,300 people · Groundwater Bagley Bagley, MN · 1,288 people · Groundwater Pequot Lakes Pequot Lakes, MN · 1,200 people · Groundwater Shafer Shafer, MN · 1,165 people · Groundwater Carlton Carlton, MN · 1,146 people · Groundwater Taylors Falls Taylors Falls, MN · 1,067 people · Groundwater Madison Lake Madison Lake, MN · 1,017 people · Groundwater Scanlon Cloquet, MN · 1,003 people · Groundwater Purchased Walker Walker, MN · 990 people · Groundwater MN Correctional Facility - Moose Lake Moose Lake, MN · 975 people · Groundwater Pine River Pine River, MN · 939 people · Groundwater Hilltop Hilltop, MN · 880 people · Surface Water Purchased Saint Clair St. Clair, MN · 846 people · Groundwater Blackduck Blackduck, MN · 826 people · Groundwater Flamingo Terrace Mobile Home Park Ham Lake, MN · 804 people · Groundwater Westbrook Westbrook, MN · 785 people · Groundwater Lake Park Lake Park, MN · 714 people · Groundwater Cass Lake Cass Lake, MN · 691 people · Groundwater Restwood Terrace Circle Pines, MN · 650 people · Groundwater Hill City Hill City, MN · 633 people · Groundwater Sabin Sabin, MN · 629 people · Groundwater Oak Grove Oak Grove, MN · 623 people · Groundwater Barnum Barnum, MN · 621 people · Groundwater Good Thunder Good Thunder, MN · 583 people · Groundwater Ironton Ironton, MN · 578 people · Groundwater Audubon Audubon, MN · 570 people · Groundwater Graceville Graceville, MN · 543 people · Groundwater Amboy Amboy, MN · 535 people · Groundwater Hamburg Hamburg, MN · 530 people · Groundwater Deerwood Deerwood, MN · 530 people · Groundwater Pillager Pillager, MN · 523 people · Groundwater Crown College St. Bonifacius, MN · 520 people · Groundwater GreyStone MHP Watertown, MN · 500 people · Groundwater East Bethel East Bethel, MN · 500 people · Groundwater Ulen Ulen, MN · 500 people · Groundwater Clearbrook Clearbrook, MN · 458 people · Groundwater New Germany New Germany, MN · 422 people · Groundwater Milan Milan, MN · 418 people · Groundwater Cedarwood Estates Cedar, MN · 406 people · Groundwater Comfrey Comfrey, MN · 402 people · Groundwater Rockwood Estates St. Louis Park, MN · 400 people · Groundwater Harris Harris, MN · 400 people · Groundwater Wrenshall Wrenshall, MN · 399 people · Groundwater Clinton Clinton, MN · 395 people · Groundwater McGregor McGregor, MN · 394 people · Groundwater Hanska Hanska, MN · 393 people · Groundwater Maynard Maynard, MN · 388 people · Groundwater Preserve at Birch Lake Scandia, MN · 388 people · Groundwater Remer Remer, MN · 369 people · Groundwater Jeffers Jeffers, MN · 369 people · Groundwater Purchased South Bend Township Mankato, MN · 325 people · Groundwater Vernon Center Vernon Center, MN · 323 people · Groundwater Hackensack Hackensack, MN · 306 people · Groundwater Center City Center City, MN · 305 people · Groundwater Skyline Mankato, MN · 289 people · Groundwater Parkview Homes, LLC Lexington, MN · 280 people · Groundwater Gonvick Gonvick, MN · 276 people · Groundwater Backus Backus, MN · 267 people · Groundwater Kelliher Kelliher, MN · 259 people · Groundwater Cromwell Cromwell, MN · 250 people · Groundwater Pemberton Pemberton, MN · 247 people · Groundwater Liberty Ponds Development Forest Lake, MN · 240 people · Groundwater Baldwin Lake Estates Stillwater, MN · 235 people · Groundwater Callaway Callaway, MN · 234 people · Groundwater Wyoming Park LLC Excelsior, MN · 225 people · Groundwater Fischers Garden Mobile Home Park Sauk Rapids, MN · 220 people · Groundwater Beardsley Beardsley, MN · 216 people · Groundwater Storden Storden, MN · 215 people · Groundwater Purchased Hitterdal Hitterdal, MN · 208 people · Groundwater Ogema Ogema, MN · 204 people · Groundwater Purchased Twin Haven Estates Sebeka, MN · 200 people · Groundwater Birchwood Terrace Maplewood, MN · 200 people · Groundwater Spring Prairie Colony Hawley, MN · 200 people · Groundwater Felton Felton, MN · 178 people · Groundwater Watson Watson, MN · 175 people · Groundwater Cuyuna Deerwood, MN · 175 people · Groundwater Kettle River Kettle River, MN · 168 people · Groundwater Palisade Palisade, MN · 166 people · Groundwater Rapidan Development Company, Inc. Mankato, MN · 164 people · Groundwater Oak Hills Fellowship Bible College Bemidji, MN · 150 people · Groundwater Blue Waters Leisure Park Excelsior, MN · 150 people · Groundwater School Sisters of Notre Dame Mankato, MN · 140 people · Groundwater Riverton Riverton, MN · 132 people · Groundwater Bingham Lake Bingham Lake, MN · 128 people · Groundwater Purchased Elpine Village Bemidji, MN · 125 people · Groundwater Lismore Colony Clinton, MN · 125 people · Groundwater John Bouton Housing Development Hawley, MN · 125 people · Groundwater Columbus Columbus, MN · 123 people · Groundwater Benton Utilities LLC Sauk Rapids, MN · 120 people · Groundwater Big Stone Hutterite Graceville, MN · 110 people · Groundwater