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WaterSafeCheck
Official EPA SDWIS Statewide AnalysisState Water Quality & Testing Directory

Iowa Drinking Water Quality & Testing Directory

Comprehensive EPA compliance records, water testing guidelines, and city rankings covering all 1,058 ZIP codes across Iowa

Quick Summary: Is Tap Water Safe in Iowa?

Drinking water in Iowa receives an average composite safety score of 59.2/100 based on EPA Safe Drinking Water Act records. Approximately 0% of monitored ZIP codes earn an "A" grade. Water sources are 31.9% surface water and 68.1% groundwater, resulting in Hard to Very Hard mineral hardness across the state.

Total ZIP Codes

1,058

Health Violations (5yr)

159

Statewide Avg Score

59.2/100

High Lead Risk Areas

81.7%

Overview: Drinking Water in Iowa

Drinking water quality in Iowa averages a composite safety score of 59.2/100 across its 1,058 monitored ZIP codes. Approximately 0% of ZIP codes in the state receive an "A" grade, while 1% receive an "F" grade. Environmental standards are enforced by Iowa Department of Natural Resources.

Surface Water

31.9%

of ZIP codes

Total Violations

2,974

5-year record

Grade A ZIPs

0

0% of state

Grade F ZIPs

11

1% of state

Water Quality Grade Distribution in Iowa

How do Iowa's 1,058 ZIP codes stack up by water quality grade?

A
0 ZIP codes0%
B
126 ZIP codes12%
C
658 ZIP codes62%
D
263 ZIP codes25%
F
11 ZIP codes1%

Popular Cities in Iowa

Click any city to view ZIP code-level water quality reports

Des Moines

58 ZIPs

C

Cedar Rapids

14 ZIPs

C

Sioux City

9 ZIPs

C

Davenport

9 ZIPs

D

Iowa City

6 ZIPs

D

Ames

5 ZIPs

C

Dubuque

5 ZIPs

C

Waterloo

4 ZIPs

C

Clinton

4 ZIPs

C

Boone

3 ZIPs

C

Urbandale

3 ZIPs

D

Council Bluffs

3 ZIPs

C

Shenandoah

3 ZIPs

C

Ankeny

2 ZIPs

C

Melcher-dallas

2 ZIPs

C

West Des Moines

2 ZIPs

C

Mason City

2 ZIPs

C

Clarion

2 ZIPs

C

Cedar Falls

2 ZIPs

C

Harlan

2 ZIPs

C

Red Oak

2 ZIPs

C

Amana

2 ZIPs

C

Bloomfield

2 ZIPs

C

Fairfield

2 ZIPs

C

Ackworth

1 ZIP

D

Adair

1 ZIP

C

Adel

1 ZIP

C

Albion

1 ZIP

C

Alden

1 ZIP

B

Alleman

1 ZIP

D

Allerton

1 ZIP

C

Altoona

1 ZIP

C

Anita

1 ZIP

B

Atlantic

1 ZIP

C

Audubon

1 ZIP

C

Bagley

1 ZIP

D

Barnes City

1 ZIP

D

Baxter

1 ZIP

C

Bayard

1 ZIP

D

Beaver

1 ZIP

D

City A-Z Directory — Iowa

Browse water quality reports for every town and city in Iowa.

A
AckleyAckworthAdairAdelAftonAgencyAinsworthAkronAlbert CityAlbiaAlbionAlburnettAldenAlexanderAlgonaAllemanAllertonAllisonAltaAlta VistaAltonAltoonaAlvordAmanaAmesAnamosaAndoverAndrewAnitaAnkenyAnthonAplingtonArcadiaArcherAredaleArgyleArionArispeArlingtonArmstrongArnolds ParkArthurAshtonAspinwallAtalissaAtkinsAtlanticAuburnAudubonAureliaAuroraAustinvilleAvocaAyrshire
B
BadgerBagleyBaldwinBancroftBarnes CityBarnumBataviaBattle CreekBaxterBayardBeaconBeamanBeaverBedfordBelle PlaineBellevueBelmondBennettBentonBernardBerwickBettendorfBevingtonBirminghamBlairsburgBlairstownBlakesburgBlanchardBlencoeBlocktonBloomfieldBlue GrassBodeBonaparteBondurantBooneBoonevilleBoutonBoxholmBoydenBraddyvilleBradfordBradgateBrandonBraytonBredaBridgewaterBrightonBristowBrittBronsonBrooklynBrunsvilleBryantBuckeyeBuckinghamBuffaloBuffalo CenterBurlingtonBurnsideBurtBussey
C
CalamusCallenderCalmarCalumetCamancheCambridgeCantrilCarbonCarlisleCarpenterCarrollCarsonCarter LakeCascadeCaseyCastaliaCastanaCedarCedar FallsCedar RapidsCenter JunctionCenter PointCentervilleCentral CityChapinCharitonCharles CityCharlotteCharter OakChatsworthChelseaCherokeeChesterChillicotheChurdanCincinnatiClareClarenceClarindaClarionClarksvilleClear LakeClearfieldCleghornClemonsClermontClimbing HillClintonClioCliveClutierCoggonCoinColesburgColfaxCollege SpringsCollinsColoColumbiaColumbus CityColumbus JunctionColwellConesvilleConradConroyCoon RapidsCooperCoralvilleCorningCorrectionvilleCorwithCorydonCoulterCouncil BluffsCrawfordsvilleCrescentCrescoCrestonCromwellCrystal LakeCumberlandCummingCurlewCushingCylinder
D
Dakota CityDallas CenterDanaDanburyDanvilleDavenportDavis CityDawsonDaytonDe SotoDe WittDecaturDecorahDedhamDeep RiverDefianceDelawareDelhiDelmarDeloitDeltaDenisonDenmarkDenverDerbyDes MoinesDewarDexterDiagonalDickensDikeDixonDolliverDonahueDonnellsonDoonDorchesterDoudsDoughertyDow CityDowsDrakesvilleDubuqueDumontDuncombeDundeeDunkertonDunlapDurangoDurantDyersvilleDysart
E
Eagle GroveEarlhamEarlingEarlvilleEarlyEddyvilleEdgewoodElberonEldonEldoraEldridgeElginElk HornElkaderElkhartElkportElliottEllstonEllsworthElmaElyEmersonEmmetsburgEpworthEssexEsthervilleEvansdaleEverlyExiraExline
F
FairbankFairfaxFairfieldFarleyFarmersburgFarmingtonFarnhamvilleFarragutFayetteFentonFergusonFertileFlorisFloydFondaFontanelleForest CityFort AtkinsonFort DodgeFort MadisonFostoriaFredericksburgFrederikaFremontFruitland
G
GaltGalvaGarberGarden CityGarden GroveGarnavilloGarnerGarrisonGarwinGenevaGeorgeGibsonGiffordGilbertGilbertvilleGillett GroveGilmanGilmore CityGladbrookGlenwoodGliddenGoldfieldGoodellGoose LakeGowrieGraettingerGraftonGrand JunctionGrand MoundGrand RiverGrandviewGrangerGrantGranvilleGravityGrayGreeleyGreeneGreenfieldGreenvilleGrimesGrinnellGriswoldGrundy CenterGuernseyGuthrie CenterGuttenberg
H
HalburHamburgHamiltonHamlinHamptonHancockHanlontownHarcourtHardyHarlanHarperHarpers FerryHarrisHartfordHartleyHartwickHarveyHastingsHavelockHaverhillHawardenHawkeyeHayesvilleHazletonHedrickHendersonHiawathaHighlandvilleHillsHillsboroHintonHollandHolsteinHoly CrossHomesteadHoney CreekHopkintonHornickHospersHoughtonHubbardHudsonHullHumboldtHumestonHuxley
I
Ida GroveImogeneIndependenceIndianolaInwoodIoniaIowa CityIowa FallsIraIretonIrwin
J
JamaicaJanesvilleJeffersonJesupJewellJohnstonJoiceJolley
K
KalonaKamrarKanawhaKellertonKelleyKelloggKensettKeokukKeosauquaKeotaKesleyKeswickKeystoneKillduffKimballtonKingsleyKirkmanKirkvilleKironKlemmeKnierimKnoxville
L
La MotteLa Porte CityLaconaLadoraLake CityLake MillsLake ParkLake ViewLakotaLamoniLamontLanesboroLangworthyLansingLarchwoodLarrabeeLatimerLaurelLaurensLawlerLawtonLe ClaireLe GrandLe MarsLedyardLehighLeightonLelandLenoxLeonLesterLettsLewisLiberty CenterLibertyvilleLidderdaleLime SpringsLincolnLindenLinevilleLinn GroveLisbonLiscombLittle CedarLittle RockLittle SiouxLivermoreLockridgeLoganLohrvilleLone RockLone TreeLong GroveLorimorLost NationLoviliaLow MoorLowdenLu VerneLuanaLucasLutherLuxemburgLuzerneLynnvilleLytton
M
MacedoniaMacksburgMadridMagnoliaMalcomMallardMalvernManchesterManillaManlyManningMansonMapletonMaquoketaMarathonMarble RockMarcusMarengoMarionMarneMarquetteMarshalltownMartelleMartensdaleMartinsburgMason CityMasonvilleMassenaMatlockMauriceMaxwellMaynardMc CallsburgMc CauslandMc ClellandMc GregorMc IntireMechanicsvilleMediapolisMelbourneMelcher-dallasMelroseMelvinMenloMeridenMerrillMeserveyMiddle AmanaMiddletownMilesMilfordMillersburgMillertonMiloMiltonMinburnMindenMineolaMingoMissouri ValleyMitchellvilleModaleMondaminMonmouthMononaMonroeMontezumaMonticelloMontourMontpelierMontroseMoorheadMoorlandMoraviaMorleyMorning SunMorrisonMoscowMoultonMount AuburnMount AyrMount PleasantMount SterlingMount UnionMount VernonMovilleMurrayMuscatineMystic
N
NashuaNemahaNeolaNevadaNew AlbinNew HamptonNew HartfordNew LibertyNew LondonNew MarketNew ProvidenceNew SharonNew ViennaNew VirginiaNewellNewhallNewtonNicholsNodawayNora SpringsNorth Buena VistaNorth EnglishNorth LibertyNorth WashingtonNorthboroNorthwoodNorwalkNorway
O
OaklandOakvilleOcheyedanOdeboltOelweinOgdenOkobojiOldsOlinOllieOnawaOnslowOranOrange CityOrchardOrientOsageOsceolaOskaloosaOssianOthoOtleyOtoOttosenOttumwaOxfordOxford JunctionOyens
P
Pacific JunctionPackwoodPalmerPaloPanamaPanoraParkersburgParnellPatonPattersonPaullinaPellaPeostaPercivalPerryPersiaPeruPetersonPiersonPilot GrovePilot MoundPisgahPlainfieldPlanoPleasant HillPleasant ValleyPleasantvillePloverPlymouthPocahontasPolk CityPomeroyPopejoyPortsmouthPostvillePrairie CityPrairieburgPrescottPrestonPrimgharPrincetonProlePromise CityProtivinPulaski
Q
QuasquetonQuimby
R
RadcliffeRakeRalstonRandaliaRandallRandolphRaymondReadlynReasnorRed OakReddingRedfieldReinbeckRembrandtRemsenRenwickRhodesRicevilleRichlandRickettsRidgewayRingstedRippeyRiversideRivertonRobinsRock FallsRock RapidsRock ValleyRockfordRockwellRockwell CityRodneyRolandRolfeRomeRose HillRowanRowleyRoyalRuddRunnellsRussellRuthvenRutlandRyan
S
SabulaSac CitySaint AnsgarSaint AnthonySaint CharlesSaint DonatusSaint LucasSaint MarysSaint OlafSaint PaulSalemSalixSanbornScarvilleSchallerSchleswigScrantonSearsboroSelmaSergeant BluffSeymourShambaughShannon CitySharpsburgSheffieldShelbySheldahlSheldonShell RockShellsburgShenandoahSherrillSibleySidneySigourneySilver CitySioux CenterSioux CitySioux RapidsSlaterSloanSmithlandSoldierSolonSomersSouth AmanaSouth EnglishSpencerSperrySpillvilleSpirit LakeSpraguevilleSpringbrookSpringvilleStacyvilleStanhopeStanleyStantonStanwoodState CenterSteamboat RockStockportStocktonStorm LakeStory CityStoutStratfordStrawberry PointStuartSullySumnerSuperiorSutherlandSwaledaleSwanSwea CitySwedesburgSwisher
T
TaborTamaTeeds GroveTempletonTerrilThayerThompsonThorThornburgThorntonThurmanTiffinTingleyTiptonTitonkaToddvilleToetervilleToledoTracyTraerTreynorTripoliTroy MillsTruesdaleTruro
U
UdellUnderwoodUnionUnionvilleUniversity ParkUrbanaUrbandaleUte
V
VailVan HorneVan MeterVan WertVarinaVenturaVictorVilliscaVincentViningVintonVolga
W
WadenaWalcottWalfordWalkerWall LakeWallingfordWalnutWapelloWashingtonWashtaWaterlooWatervilleWatkinsWaucomaWaukeeWaukonWaverlyWaylandWebbWebsterWebster CityWeldonWellmanWellsburgWeltonWesleyWest BendWest BranchWest BurlingtonWest ChesterWest Des MoinesWest LibertyWest PointWest UnionWestfieldWestgateWestphaliaWestsideWeverWhat CheerWheatlandWhitingWhittemoreWhittenWilliamsWilliamsburgWilliamsonWiltonWindsor HeightsWinfieldWintersetWinthropWiotaWodenWoodbineWoodburnWoodwardWoolstockWorthingtonWyoming
Y
YaleYarmouthYorktown
Z
ZearingZwingle

🏆 Highest Rated ZIP Codes in Iowa

50006Alden
70/100
B
50020Anita
70/100
B
50032Berwick
70/100
B
50035Bondurant
70/100
B
50044Bussey
70/100
B

⚠ Lowest Rated ZIP Codes in Iowa

50133Kellerton
30/100
F
51462Scranton
30/100
F
50128Jamaica
32/100
F
52642Rome
33/100
F
50635Gladbrook
34/100
F

Common Drinking Water Contaminants in Iowa

The following are common regulated contaminants found in Iowa drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.

CopperChlorine residualLeadContaminant 0700E. coliHaloacetic Acids (HAA5)BariumGross Beta

Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.

Frequently Asked Questions — Iowa Drinking Water

Is tap water generally safe to drink in Iowa?+
Yes, for the majority of residents, tap water in Iowa is treated and regulated. However, compliance varies by city. State-wide, 0 ZIP codes receive an "A" grade, while 11 receive an "F". Search your specific ZIP code to see your local utility's record.
How do I test water quality or well water in Iowa?+
Residents in Iowa can test their tap or well water by contacting laboratories certified by Iowa Department of Natural Resources or ordering an EPA-standard laboratory water testing kit. Annual testing is recommended for private wells to test for bacteria, nitrates, and heavy metals.
What are the biggest water quality issues in Iowa?+
The primary issues include managing 159 health-based violations state-wide and resolving infrastructure age. 81.7% of ZIP codes in the state have a high probability of lead exposure risk due to pre-1986 piping.
Who regulates and enforces drinking water standards in Iowa?+
Drinking water in Iowa is regulated by Iowa Department of Natural Resources under a primacy agreement with the U.S. EPA.
Where does Iowa get its drinking water?+
Approximately 31.9% of monitored areas in Iowa rely on surface water sources (lakes/rivers), while the rest use groundwater aquifers.
How do I find the official water quality report for my home in Iowa?+
Search your ZIP code on our site to view data compiled from EPA records, or contact your local utility for their annual Consumer Confidence Report (CCR).
View All 1,058 ZIP Codes in Iowa

Browse EPA water quality data for every monitored ZIP code. For faster results, use the search bar above.

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All 1,058 ZIP codes in Iowa are actively monitored under the EPA Safe Drinking Water Act.