Minnesota: drinking water & radon

Minnesota has 1,000 active community water systems. Since 2016, 117 reported health-based violations; 7 had a latest lead result above 15 ppb; 16 measured PFOA or PFOS at or above 4 ppt.

Radon zones in Minnesota

tap a county

Zone 1 · highestZone 2 · moderateZone 3 · low

All ZIP codes in Minnesota

943 ZIP codes.

55001Afton55003Bayport55005Bethel55006Braham55007Brook Park55008Cambridge55009Cannon Falls55010Castle Rock55011Cedar55012Center City55013Chisago City55014Circle Pines55016Cottage Grove55017Dalbo55018Dennison55019Dundas55020Elko New Market55021Faribault55024Farmington55025Forest Lake55026Frontenac55027Goodhue55030Grasston55031Hampton55032Harris55033Hastings55036Henriette55037Hinckley55038Hugo55040Isanti55041Lake City55042Lake Elmo55043Lakeland55044Lakeville55045Lindstrom55046Lonsdale55047Marine On Saint Croix55049Medford55051Mora55052Morristown55053Nerstrand55054Elko New Market55055Newport55056North Branch55057Northfield55060Owatonna55063Pine City55065Randolph55066Red Wing55068Rosemount55069Rush City55070Saint Francis55071Saint Paul Park55072Sandstone55073Scandia55074Shafer55075South Saint Paul55076Inver Grove Heights55077Inver Grove Heights55078Stacy55079Stacy55080Stanchfield55082Stillwater55083Stillwater55084Taylors Falls55085Vermillion55087Warsaw55088Webster55089Welch55092Wyoming55101Saint Paul55102Saint Paul55103Saint Paul55104Saint Paul55105Saint Paul55106Saint Paul55107Saint Paul55108Saint Paul55109Saint Paul55110Saint Paul55111Saint Paul55112Saint Paul55113Saint Paul55114Saint Paul55115Saint Paul55116Saint Paul55117Saint Paul55118Saint Paul55119Saint Paul55120Saint Paul55121Saint Paul55122Saint Paul55123Saint Paul55124Saint Paul55125Saint Paul55126Saint Paul55127Saint Paul55128Saint Paul55129Saint Paul55130Saint Paul55131Saint Paul55133Saint Paul55145Saint Paul55146Saint Paul55150Mendota55164Saint Paul55170Saint Paul55301Albertville55302Annandale55303Anoka55304Andover55305Hopkins55306Burnsville55307Arlington55308Becker55309Big Lake55310Bird Island55311Maple Grove55312Brownton55313Buffalo55314Buffalo Lake55315Carver55316Champlin55317Chanhassen55318Chaska55319Clear Lake55320Clearwater55321Cokato55322Cologne55323Crystal Bay55324Darwin55325Dassel55327Dayton55328Delano55329Eden Valley55330Elk River55331Excelsior55332Fairfax55333Franklin55334Gaylord55335Gibbon55336Glencoe55337Burnsville55338Green Isle55339Hamburg55340Hamel55341Hanover55342Hector55343Hopkins55344Eden Prairie55345Minnetonka55346Eden Prairie55347Eden Prairie55349Howard Lake55350Hutchinson55352Jordan55353Kimball55354Lester Prairie55355Litchfield55356Long Lake55357Loretto55358Maple Lake55359Maple Plain55360Mayer55361Minnetonka Beach55362Monticello55363Montrose55364Mound55366New Auburn55367New Germany55368Norwood Young America55369Osseo55370Plato55371Princeton55372Prior Lake55373Rockford55374Rogers55375Saint Bonifacius55376Saint Michael55377Santiago55378Savage55379Shakopee55381Silver Lake55382South Haven55384Spring Park55385Stewart55386Victoria55387Waconia55388Watertown55389Watkins55390Waverly55391Wayzata55395Winsted55396Winthrop55397Young America55398Zimmerman55401Minneapolis55403Minneapolis55404Minneapolis55405Minneapolis55406Minneapolis55407Minneapolis55408Minneapolis55409Minneapolis55410Minneapolis55411Minneapolis55412Minneapolis55413Minneapolis55414Minneapolis55415Minneapolis55416Minneapolis55417Minneapolis55418Minneapolis55419Minneapolis55420Minneapolis55421Minneapolis55422Minneapolis55423Minneapolis55424Minneapolis55425Minneapolis55426Minneapolis55427Minneapolis55428Minneapolis55429Minneapolis55430Minneapolis55431Minneapolis55432Minneapolis55433Minneapolis55434Minneapolis55435Minneapolis55436Minneapolis55437Minneapolis55438Minneapolis55439Minneapolis55440Minneapolis55441Minneapolis55442Minneapolis55443Minneapolis55444Minneapolis55445Minneapolis55446Minneapolis55447Minneapolis55448Minneapolis55449Minneapolis55450Minneapolis55454Minneapolis55455Minneapolis55458Minneapolis55459Minneapolis55467Minneapolis55470Minneapolis55472Minneapolis55474Minneapolis55478Minneapolis55479Minneapolis55480Minneapolis55483Minneapolis55484Minneapolis55485Minneapolis55486Minneapolis55487Minneapolis55488Minneapolis55554Norwood55569Osseo55572Rockford55573Young America55575Howard Lake55577Maple Plain55592Maple Plain55593Maple Plain55599Loretto55601Beaver Bay55602Brimson55603Finland55604Grand Marais55605Grand Portage55606Hovland55607Isabella55609Knife River55612Lutsen55613Schroeder55614Silver Bay55615Tofte55616Two Harbors55702Alborn55703Angora55704Askov55705Aurora55706Babbitt55707Barnum55708Biwabik55709Bovey55710Britt55711Brookston55712Bruno55713Buhl55716Calumet55717Canyon55718Carlton55719Chisholm55720Cloquet55721Cohasset55722Coleraine55723Cook55724Cotton55725Crane Lake55726Cromwell55730Grand Rapids55731Ely55732Embarrass55733Esko55734Eveleth55735Finlayson55736Floodwood55738Forbes55741Gilbert55742Goodland55744Grand Rapids55745Grand Rapids55746Hibbing55748Hill City55749Holyoke55750Hoyt Lakes55751Iron55752Jacobson55753Keewatin55756Kerrick55757Kettle River55758Kinney55760Mcgregor55763Makinen55764Marble55765Meadowlands55766Melrude55767Moose Lake55768Mountain Iron55769Nashwauk55771Orr55772Nett Lake55775Pengilly55777Virginia55779Saginaw55780Sawyer55781Side Lake55782Soudan55783Sturgeon Lake55784Swan River55785Swatara55786Taconite55787Tamarack55790Tower55791Twig55792Virginia55793Warba55795Willow River55796Winton55797Wrenshall55798Wright55802Duluth55803Duluth55804Duluth55805Duluth55806Duluth55807Duluth55808Duluth55810Duluth55811Duluth55812Duluth55814Duluth55815Duluth55816Duluth55901Rochester55902Rochester55903Rochester55904Rochester55906Rochester55909Adams55910Altura55912Austin55917Blooming Prairie55918Brownsdale55919Brownsville55920Byron55921Caledonia55922Canton55923Chatfield55924Claremont55925Dakota55926Dexter55927Dodge Center55929Dover55931Eitzen55932Elgin55933Elkton55934Eyota55935Fountain55936Grand Meadow55939Harmony55940Hayfield55941Hokah55942Homer55943Houston55944Kasson55945Kellogg55946Kenyon55947La Crescent55949Lanesboro55950Lansing55951Le Roy55952Lewiston55953Lyle55954Mabel55955Mantorville55956Mazeppa55957Millville55959Minnesota City55960Oronoco55961Ostrander55962Peterson55963Pine Island55964Plainview55965Preston55967Racine55968Reads Landing55969Rollingstone55970Rose Creek55971Rushford55972Saint Charles55973Sargeant55974Spring Grove55975Spring Valley55976Stewartville55977Taopi55979Utica55981Wabasha55982Waltham55983Wanamingo55985West Concord55987Winona55988Stockton55990Wykoff55991Zumbro Falls55992Zumbrota56001Mankato56002Mankato56003Mankato56007Albert Lea56009Alden56010Amboy56011Belle Plaine56013Blue Earth56014Bricelyn56016Clarks Grove56017Cleveland56019Comfrey56021Courtland56023Delavan56024Eagle Lake56025Easton56026Ellendale56027Elmore56028Elysian56029Emmons56030Essig56031Fairmont56032Freeborn56033Frost56034Garden City56035Geneva56036Glenville56037Good Thunder56039Granada56041Hanska56042Hartland56043Hayward56044Henderson56045Hollandale56046Hope56048Janesville56050Kasota56051Kiester56052Kilkenny56054Lafayette56055Lake Crystal56056La Salle56057Le Center56058Le Sueur56060Lewisville56062Madelia56063Madison Lake56065Mapleton56068Minnesota Lake56069Montgomery56071New Prague56072New Richland56073New Ulm56074Nicollet56075Northrop56078Pemberton56080Saint Clair56081Saint James56082Saint Peter56083Sanborn56084Searles56085Sleepy Eye56087Springfield56088Truman56089Twin Lakes56090Vernon Center56091Waldorf56093Waseca56096Waterville56097Wells56098Winnebago56101Windom56110Adrian56111Alpha56113Arco56114Avoca56115Balaton56116Beaver Creek56117Bigelow56118Bingham Lake56119Brewster56120Butterfield56121Ceylon56122Chandler56123Currie56127Dunnell56128Edgerton56129Ellsworth56131Fulda56132Garvin56134Hardwick56136Hendricks56137Heron Lake56138Hills56139Holland56140Ihlen56141Iona56142Ivanhoe56143Jackson56144Jasper56145Jeffers56146Kanaranzi56147Kenneth56149Lake Benton56150Lakefield56151Lake Wilson56152Lamberton56153Leota56155Lismore56156Luverne56157Lynd56158Magnolia56159Mountain Lake56160Odin56161Okabena56162Ormsby56164Pipestone56165Reading56166Revere56167Round Lake56168Rushmore56169Russell56170Ruthton56171Sherburn56172Slayton56173Steen56174Storden56175Tracy56176Trimont56178Tyler56180Walnut Grove56181Welcome56183Westbrook56185Wilmont56186Woodstock56187Worthington56201Willmar56207Alberta56208Appleton56209Atwater56210Barry56211Beardsley56212Bellingham56214Belview56215Benson56216Blomkest56218Boyd56219Browns Valley56220Canby56221Chokio56222Clara City56223Clarkfield56224Clements56225Clinton56226Clontarf56227Correll56228Cosmos56229Cottonwood56230Danube56231Danvers56232Dawson56235Donnelly56236Dumont56237Echo56239Ghent56240Graceville56241Granite Falls56243Grove City56244Hancock56245Hanley Falls56248Herman56249Holloway56251Kandiyohi56252Kerkhoven56253Lake Lillian56255Lucan56256Madison56257Marietta56258Marshall56260Maynard56262Milan56263Milroy56264Minneota56265Montevideo56266Morgan56267Morris56270Morton56271Murdock56273New London56274Norcross56276Odessa56277Olivia56278Ortonville56279Pennock56280Porter56281Prinsburg56282Raymond56283Redwood Falls56284Renville56285Sacred Heart56287Seaforth56288Spicer56289Sunburg56291Taunton56292Vesta56293Wabasso56294Wanda56295Watson56296Wheaton56297Wood Lake56301Saint Cloud56302Saint Cloud56303Saint Cloud56304Saint Cloud56307Albany56308Alexandria56309Ashby56310Avon56311Barrett56312Belgrade56313Bock56314Bowlus56315Brandon56316Brooten56317Buckman56318Burtrum56319Carlos56320Cold Spring56321Collegeville56323Cyrus56324Dalton56326Evansville56327Farwell56328Flensburg56329Foley56330Foreston56331Freeport56332Garfield56333Gilman56334Glenwood56335Greenwald56336Grey Eagle56338Hillman56339Hoffman56340Holdingford56341Holmes City56342Isle56343Kensington56344Lastrup56345Little Falls56347Long Prairie56349Lowry56350Mc Grath56352Melrose56353Milaca56354Miltona56355Nelson56356New Munich56357Oak Park56358Ogilvie56359Onamia56360Osakis56361Parkers Prairie56362Paynesville56363Pease56364Pierz56367Rice56368Richmond56369Rockville56371Roscoe56372Saint Cloud56373Royalton56374Saint Joseph56375Saint Stephen56376Saint Martin56377Sartell56378Sauk Centre56379Sauk Rapids56381Starbuck56382Swanville56384Upsala56385Villard56386Wahkon56387Waite Park56388Waite Park56389West Union56393Saint Cloud56395Saint Cloud56396Saint Cloud56397Saint Cloud56398Saint Cloud56399Saint Cloud56401Brainerd56425Baxter56431Aitkin56433Akeley56434Aldrich56435Backus56436Benedict56437Bertha56438Browerville56440Clarissa56441Crosby56442Crosslake56443Cushing56444Deerwood56446Eagle Bend56447Emily56448Fifty Lakes56449Fort Ripley56450Garrison56452Hackensack56453Hewitt56455Ironton56456Jenkins56458Lake George56459Lake Hubert56461Laporte56464Menahga56465Merrifield56466Motley56467Nevis56468Nisswa56469Palisade56470Park Rapids56472Pequot Lakes56473Pillager56474Pine River56475Randall56477Sebeka56479Staples56481Verndale56482Wadena56484Walker56501Detroit Lakes56502Detroit Lakes56510Ada56511Audubon56514Barnesville56515Battle Lake56516Bejou56517Beltrami56518Bluffton56519Borup56520Breckenridge56521Callaway56522Campbell56523Climax56524Clitherall56525Comstock56527Deer Creek56528Dent56529Dilworth56531Elbow Lake56533Elizabeth56534Erhard56535Erskine56536Felton56537Fergus Falls56538Fergus Falls56540Fertile56541Flom56542Fosston56543Foxhome56544Frazee56545Gary56546Georgetown56547Glyndon56548Halstad56549Hawley56550Hendrum56551Henning56552Hitterdal56553Kent56554Lake Park56556Mcintosh56557Mahnomen56560Moorhead56561Moorhead56563Moorhead56565Nashua56566Naytahwaush56567New York Mills56568Nielsville56569Ogema56570Osage56571Ottertail56572Pelican Rapids56573Perham56574Perley56575Ponsford56576Richville56578Rochert56579Rothsay56580Sabin56581Shelly56583Tintah56584Twin Valley56585Ulen56586Underwood56587Vergas56588Vining56589Waubun56590Wendell56591White Earth56592Winger56593Wolf Lake56594Wolverton56601Bemidji56619Bemidji56621Bagley56623Baudette56626Bena56627Big Falls56628Bigfork56629Birchdale56630Blackduck56631Bowstring56633Cass Lake56634Clearbrook56636Deer River56637Talmoon56639Effie56641Federal Dam56644Gonvick56646Gully56647Hines56649International Falls56650Kelliher56651Lengby56652Leonard56653Littlefork56654Loman56655Longville56657Marcell56658Margie56659Max56660Mizpah56661Northome56662Outing56663Pennington56666Ponemah56667Puposky56668Ranier56669Kabetogama56670Redby56671Redlake56672Remer56673Roosevelt56676Shevlin56678Solway56679South International Falls56680Spring Lake56681Squaw Lake56683Tenstrike56684Trail56685Waskish56686Williams56687Wilton56688Wirt56701Thief River Falls56710Alvarado56711Angle Inlet56713Argyle56714Badger56715Brooks56716Crookston56720Donaldson56721East Grand Forks56722Euclid56723Fisher56724Gatzke56725Goodridge56726Greenbush56727Grygla56728Hallock56729Halma56731Humboldt56732Karlstad56733Kennedy56734Lake Bronson56735Lancaster56736Mentor56737Middle River56738Newfolden56742Oklee56744Oslo56748Plummer56750Red Lake Falls56751Roseau56754Saint Hilaire56755Saint Vincent56756Salol56757Stephen56758Strandquist56759Strathcona56760Viking56761Wannaska56762Warren56763Warroad

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

How many water systems in Minnesota have violations?

117 of 1,000 active community water systems in Minnesota reported at least one health-based violation since 2016 (EPA SDWIS).

What is the radon risk in Minnesota?

709 ZIP codes are in EPA radon zone 1 (highest potential), 234 in zone 2 and 0 in zone 3. EPA recommends testing every home.