Mississippi tap water quality
1,015 active community water systems.
Largest water systems
| Grade | System | People | Health violations (5y) |
| D | City of Jackson | 189,673 | 16 |
| A | City of Gulfport | 75,056 | 0 |
| A | City of Southaven | 56,000 | 0 |
| A | City of Olive Branch | 54,025 | 0 |
| A | City of Hattiesburg | 43,449 | 0 |
| A | City of Tupelo | 37,000 | 0 |
| A | City of Meridian | 34,466 | 0 |
| A | City of Starkville | 32,027 | 0 |
| B | City of Brandon | 31,852 | 1 |
| A | City of Flowood | 31,574 | 0 |
| C | City of Greenville | 29,602 | 2 |
| A | City of Vicksburg | 29,238 | 0 |
| A | West Jackson Co Utility Dist | 28,544 | 0 |
| D | City of Oxford | 28,500 | 0 |
| D | City of Jackson-Maddox Rd. | 28,098 | 5 |
| B | City of Pearl | 27,115 | 0 |
| B | University of Mississippi | 26,874 | 0 |
| A | Bear Creek W/A-West | 26,677 | 0 |
| A | City of Ocean Springs | 26,168 | 0 |
| A | City of Clinton | 25,000 | 0 |
| A | City of Ridgeland | 24,340 | 0 |
| A | Columbus Light & Water | 23,616 | 0 |
| A | City of Biloxi | 23,310 | 0 |
| B | City of Pascagoula | 22,686 | 0 |
| A | City of Gautier | 22,253 | 0 |
| A | City of Greenwood | 19,140 | 0 |
| A | Bear Creek W/A -East | 18,770 | 0 |
| A | City of Long Beach | 18,514 | 0 |
| A | West Lamar Water Assn #1 | 18,491 | 0 |
| A | City of Laurel | 18,100 | 0 |
| C | City of Canton | 16,785 | 1 |
| A | City of Cleveland | 16,392 | 0 |
| A | City of Madison | 16,136 | 0 |
| A | Choctaw - Pearl River | 16,106 | 0 |
| A | City of West Point | 15,062 | 0 |
| C | City of Corinth | 15,000 | 0 |
| B | Ms State University | 15,000 | 0 |
| D | Clarksdale Public Utilities | 14,903 | 6 |
| A | City of Natchez | 14,520 | 0 |
| C | City of Hernando | 14,457 | 1 |
| A | City of Horn Lake | 13,649 | 0 |
| A | North Lamar Water Association | 12,778 | 0 |
| A | City of Grenada | 12,762 | 0 |
| A | Horn Lake Water Association | 12,735 | 0 |
| A | Diberville W/S | 12,721 | 0 |
| A | Diamondhead Utilities-North | 12,577 | 0 |
| C | City of Moss Point | 12,524 | 2 |
| C | City of Brookhaven | 12,513 | 1 |
| A | South Central Water Assn | 12,260 | 0 |
| B | City of McComb | 12,041 | 0 |
Most issues (systems serving 10,000+)
D6 health-based violations in the last 5 years; 6 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
D5 health-based violations in the last 5 years; 2 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D16 health-based violations in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2026).
DNo health-based violations in the last 5 years; 2 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Other PFAS above 2024 limits (rule proposed for repeal): PFHxS, Hazard Index; Lead 90th percentile below the action level (2024).
CNo health-based violations in the last 5 years; 1 monitoring/reporting violation; PFOA/PFOS average above the 4 ppt federal limit: PFOA, PFOS; Lead 90th percentile below the action level (2024).
C2 health-based violations in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
C2 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C1 health-based violation in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
C1 health-based violation in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
C1 health-based violation in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
BNo health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2024).
B1 health-based violation in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B1 health-based violation in the last 5 years; 1 monitoring/reporting violation; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2023).
BNo health-based violations in the last 5 years; 18 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
BNo health-based violations in the last 5 years; 9 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
BNo health-based violations in the last 5 years; 7 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
BNo health-based violations in the last 5 years; 7 monitoring/reporting violations; 1 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
BNo health-based violations in the last 5 years; 5 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
ANo health-based violations in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile above the new 10 ppb action level (LCRI, effective Nov 1, 2027); Lead 90th percentile below the action level (2023).
ANo health-based violations in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
Cities
AbbevilleAberdeenAckermanAlligatorAmoryAnguillaArcolaArtesiaAshlandAvonBaileyBaldwynBannerBassfieldBatesvilleBay Saint LouisBay SpringsBay St LouisBeaumontBeldenBellefontaineBelzoniBenoitBentonBentoniaBeulahBig CreekBiloxiBlue MountainBlue SpringsBogue ChittoBoltonBoonevilleBoyleBrandonBraxtonBrookhavenBrooklynBrooksvilleBruceBuckatunnaBudeBurnsvilleByhaliaByramCaledoniaCalhoun CityCamdenCantonCarriereCarrolltonCarsonCarthageCaryCascillaCentrevilleCharlestonChathamChunkyClarksdaleClevelandClintonCoahomaCoffeevilleCoilaColdwaterCollinsCollinsvilleColumbiaColumbusComoConehattaCorinthCourtlandCrawfordCrenshawCrowderCrugerCrystal SpringsD LoD'ibervilleDalevilleDarlingDe KalbDecaturDelta CityDennisDermaDiamondheadDibervilleDrewDuck HillDumasDuncanDundeeDurantEcruEdwardsEllisvilleEnidEnterpriseEthelEttaEuporaFalknerFayetteFernwoodFloraFlorenceFlowoodForestFoxworthFrench CampFriars PointFultonGattmanGautierGeorgetownGlenGlen AllanGlendoraGlosterGoldenGoodmanGore SpringsGraceGreenvilleGreenwoodGreenwood SpringsGrenadaGulfportGunnisonGuntownHamiltonHarrisvilleHattiesburgHazlehurstHeidelbergHermanvilleHernandoHickoryHickory FlatHolcombHollandaleHolly BluffHolly SpringsHorn LakeHoulkaHoustonIndianolaInvernessIsolaItta BenaIukaJacksonJayessJonestownKilmichaelKilnKokomoKosciuskoLakeLake CormorantLamarLambertLauderdaleLaurelLeakesvilleLelandLenaLexingtonLibertyLittle RockLong BeachLormanLouinLouiseLouisvilleLucedaleLulaLumbertonLyonMabenMaconMadisonMageeMagnoliaMantachieManteeMariettaMarionMarksMathistonMayersvilleMc Call CreekMc CarleyMc CoolMc HenryMc LainMc NeillMcCombMeadvilleMendenhallMeridianMerigoldMetcalfeMidnightMississippi StateMizeMonticelloMoorevilleMoorheadMorgan CityMortonMoselleMoss PointMound BayouMount OliveMyrtleNatchezNeelyNesbitNettletonNew AlbanyNew AugustaNew SiteNewhebronNewtonNoxapaterOak ValeOaklandOcean SpringsOkolonaOlive BranchOsykaOvettOxfordPacePachutaParisPascagoulaPass ChristianPattisonPauldingPearlPearlingtonPelahatchiePerkinstonPetalPhebaPhiladelphiaPhilippPicayunePickensPittsboroPlantersvillePontotocPopePoplarvillePort GibsonPortervillePotts CampPrairiePrentissPrestonPulaskiPurvisQuitmanRaleighRandolphRaymondRed BanksRedwoodRena LaraRichlandRichtonRidgelandRienziRipleyRobinsonvilleRolling ForkRomeRose HillRosedaleRoxieRulevilleRuthSallisSaltilloSandersvilleSandy HookSarahSardisSatartiaSaucierSchlaterScobeyScoobaSebastopolSeminarySenatobiaShannonShawShelbyShermanShubutaShuqualakSidonSilver CitySilver CreekSledgeSmithdaleSmithvilleSontagSosoSouthavenStarStarkvilleState LineSteensStennis Space CenterStewartStonewallStringerSturgisSummitSumnerSumrallSunflowerTaylorTaylorsvilleTchulaTerryThaxtonTillatobaTiplersvilleTippoTishomingoToomsubaTougalooTremontTunicaTupeloTutwilerTylertownUnionUnion ChurchUniversityUticaVaidenValley ParkVanceVancleaveVardamanVaughanVeronaVicksburgVossburgWallsWalnutWalnut GroveWalthallWashingtonWater ValleyWaterfordWavelandWaynesboroWaysideWebbWeirWessonWestWest PointWheelerWhitfieldWigginsWinonaWinstonvilleWoodlandWoodvilleYazoo City