Water Hardness in North Carolina
Average: 52 PPMSoft684 cities1,979 water systems
State data profile
How to read the North Carolina results
State pages are screening and comparison hubs. They summarize ZIP, city, and water-system patterns so you can find the local page that best matches your home or utility.
Direct or USGS-backed ZIPs
587 of 778
75% use treated-water records or USGS monitoring.
Estimated ZIP values
191 ZIPs
25% use nearby, county, or state-level fallback values.
Dataset update
March 9, 2026
Source coverage and rollups are rebuilt from the public dataset.
Use the source coverage below to judge how much local confirmation a specific city or ZIP needs. The methodology page explains the source hierarchy, weighting, and limitations.
State Average
52 PPM
Soft
Coverage
684 cities
1,979 water systems in the state rollup.
Data Source Coverage
ZIP-level source mix for North Carolina; higher direct and USGS coverage means less reliance on regional estimates.
778 ZIPs covered
Verified treated water
Utility, CCR, or state treated-water records
28%
221 ZIPs
High-confidence USGS
Environmental monitoring matched to local systems
47%
366 ZIPs
Estimated
Nearby, county, or state-level fallback values
25%
191 ZIPs
In North Carolina, 28% of ZIPs use verified treated-water records, 47% use high-confidence USGS monitoring, and 25% use estimates that should be confirmed locally for treatment decisions.
What the Data Shows in North Carolina
Most classified ZIPs in North Carolina are below the hard-water threshold, though local systems can still vary.
North Carolina uses a mixed data profile across treated-water records, USGS monitoring, and estimated fallback values.
Use the city table below to compare local results. For estimated locations or unusually high readings, confirm with your utility or a home hardness test before sizing treatment equipment.
ZIP Hardness Distribution
Soft83% (646)
Slightly Hard7% (54)
Moderately Hard3% (22)
Hard4% (33)
Very Hard3% (23)
Treatment Takeaway
Hardness treatment is less likely to be needed statewide, but local water systems can still differ from the state pattern. Test first if you see scale or spotting.
How to Use This Data
The source coverage is relatively strong in North Carolina, so these pages are useful for comparing local patterns before confirming your home's exact hardness.
Useful North Carolina City Pages
Shortcuts to city pages backed by more ZIP-code or water-system data.
Cities With More Local Data
Prioritize cities with multiple ZIPs and systems, then use the local source badges to compare high-confidence USGS readings against estimated areas.
Top 10 Hardest Water Cities
| # | City | Hardness |
|---|---|---|
| 1 | Oriental | Very Hard (257 PPM) |
| 2 | Plymouth | Very Hard (256 PPM) |
| 3 | Ocracoke | Very Hard (255 PPM) |
| 4 | Swanquarter | Very Hard (255 PPM) |
| 5 | Arapahoe | Very Hard (254 PPM) |
| 6 | Bayboro | Very Hard (254 PPM) |
| 7 | Grantsboro | Very Hard (254 PPM) |
| 8 | Hobucken | Very Hard (254 PPM) |
| 9 | Lowland | Very Hard (254 PPM) |
| 10 | Merritt | Very Hard (254 PPM) |
Top 10 Softest Water Cities
| # | City | Hardness |
|---|---|---|
| 1 | Gibson | Soft (1 PPM) |
| 2 | Laurel Hill | Soft (1 PPM) |
| 3 | Laurinburg | Soft (1 PPM) |
| 4 | Marston | Soft (1 PPM) |
| 5 | Wagram | Soft (1 PPM) |
| 6 | Bakersville | Soft (1 PPM) |
| 7 | Burnsville | Soft (1 PPM) |
| 8 | Micaville | Soft (1 PPM) |
| 9 | Cofield | Soft (2 PPM) |
| 10 | Corapeake | Soft (2 PPM) |
All Cities in North Carolina
City pages marked Estimated use fallback values and should be confirmed with local testing or utility data.
AberdeenSoftAdvanceSoftAhoskieSoftAlbemarleHardAlbertsonSoftAlexanderSoftAlexander MillsSoftAlexisSoftAlmondSoftAltamahawSlightly HardAndrewsSoftAngierSoftAnsonvilleSoftApexSoftArapahoeVery HardAraratSoftArchdaleSlightly HardArdenSoftAshModerately HardAshevilleSoftAtkinsonSoftAtlanticVery HardAulanderSoftAuroraHardAutryvilleSoftAvonSoftAydenSoftAydlettSlightly HardBadinHardBahamaSoftBaileySoftBakersvilleSoftBalsamSoftBalsam GroveSoftBanner ElkSoftBarcoSlightly HardBarnardsvilleSoftBat CaveSoftBathHardBattleboroSoftBayboroVery HardBear CreekSoftBeaufortHardBelews CreekSoftBelhavenHardBelmontSoftBelvidereModerately HardBennettSoftBensonSoftBessemer CitySoftBethelSoftBeulavilleSoftBiscoeSlightly HardBlack CreekSoftBlack Mountain SSoftBladenboroSoftBlanchSoftBlounts CreekHardBlowing RockSoftBoger CitySoftBoiling Spring LModerately HardBoliviaModerately HardBoltonSoftBonnie DooneSoftBoomerSoftBooneSoftBoonvilleSlightly HardBosticSoftBowdensSoftBrasstownSoftBrevardSoftBridgetonHardBroadwaySoftBrowns SummitSoftBryson CitySoftBuies CreekSoftBullockSoftBunnSoftBunnlevelSoftBurgawSoftBurlingtonSlightly HardBurnsvilleSoftButnerSoftBuxtonSoftCalabashModerately HardCalypsoSoftCamdenSoftCamp LejeuneSoftCandlerSoftCandorSlightly HardCantonSoftCape FearSoftCaroleenSoftCarolina BeachSoftCarrboroSoftCarthageSoftCarySoftCasarSoftCashiersSoftCastaliaSoftCastle HayneSoftCatawbaSoftCedar GroveSoftCedar IslandVery HardCedar MountainSoftCerro GordoSoftChadbournSoftChapel HillSoftCharlotteSoftCherokeeSoftCherryvilleSoftChina GroveSoftChinquapinSlightly HardChocowinityHardClaremontSoftClarendonSoftClarktonSoftClaytonSoftClemmonsSoftClevelandSoftClimaxSlightly HardClintonSoftClydeSoftCoatsSoftCofieldSoftCoinjockSlightly HardColerainSoftColeridgeSlightly HardColfaxSoftCollettsvilleSoftColonSlightly HardColumbiaSoftColumbusSlightly HardComoModerately HardConcordSoftConetoeSoftConnellys SpringSoftConoverSoftConwaySoftCooleemeeSoftCorapeakeSoftCordovaSoftCorneliusSoftCorollaSlightly HardCouncilSoftCove CityHardCramertonSoftCreedmoorSoftCrestonSoftCreswellHardCrispSoftCrossnoreSoftCrouseSoftCrumplerSoftCullowheeSoftCurrieSoftCurrituckSlightly HardDallasSoftDanburySoftDavisVery HardDeep GapSoftDeep RunSoftDelcoSoftDentonSoftDenverSoftDillsboroSoftDobsonSoftDoverHardDrexelSoftDublinSoftDudleySoftDunnSoftDurants NeckModerately HardDurhamSoftEagle SpringsSoftEast BendSoftEast FayettevillSoftEast Flat RockSoftEast LakeSoftEdenSoftEdentonSoftEdwardHardEflandSoftElizabeth CitySoftElizabethtownSoftElk ParkSoftElkinSoftEllenboroSoftEllerbeSoftElm CitySoftElon CollegeSlightly HardEmerald IsleVery HardEnfieldSoftEnniceSoftErnulHardErwinSoftEtowahSoftEureSoftEurekaSoftEvergreenSoftFair BluffSoftFairfieldModerately HardFairviewSoftFaisonSoftFalconSoftFalklandSoftFarmerSlightly HardFarmvilleSoftFayettevilleSoftFergusonSoftFlat RockSoftFleetwoodSoftFletcherSoftFontana DamSoftFort BraggSoftFountainSoftFour OaksSoftFrankSoftFranklinSoftFranklintonSoftFranklinvilleSlightly HardFriscoSoftFuquay VarinaSoftGardner Webb ColSoftGarlandSoftGarnerSoftGarysburgSoftGastonSoftGastoniaSoftGatesSoftGatesvilleSoftGeorgeSlightly HardGermantonSoftGertonSoftGibsonSoftGibsonvilleSoftGlade ValleySoftGlen RavenSlightly HardGlendale SpringsSoftGlenvilleSoftGloucesterVery HardGodwinSoftGold HillSoftGoldsboroSoftGoldstonSoftGrahamSlightly HardGrandySlightly HardGranite FallsSoftGranite QuarrySoftGranthamSoftGrantsboroVery HardGrassy CreekSoftGreenmountainSoftGreensboroSoftGreenvilleSoftGriftonSoftGrimeslandSoftGroverSoftGulfSoftHalifaxSoftHallsboroSoftHamiltonSoftHamletSoftHampsteadSoftHamptonvilleSoftHarbingerSlightly HardHarkers IslandVery HardHarmonySoftHarrellsSoftHarrellsvilleSoftHarrisburgSoftHassellSoftHatterasSoftHavelockHardHaw RiverSlightly HardHayesvilleSoftHaysSoftHendersonSoftHendersonvilleSoftHenricoSoftHenriettaSoftHickorySoftHiddeniteSoftHigh PointSoftHigh ShoalsSoftHighlandsSoftHildebranSoftHillsboroughSoftHobbsvilleSoftHobgoodSoftHobuckenVery HardHoffmanSoftHolden BeachModerately HardHollisterSoftHolly SpringsSoftHookertonSoftHope MillsSoftHorse ShoeSoftHot SpringsSoftHubertSoftHudsonSoftHuntersvilleSoftHurdle MillsSoftIcardSoftIndian TrailSoftIron StationSoftIvanhoeSoftJacksonSlightly HardJackson SpringsSoftJacksonvilleSoftJamestownSoftJamesvilleHardJarvisburgSlightly HardJeffersonSoftJohnsonvilleSoftJonesvilleSlightly HardJulianSoftKannapolisSoftKelfordSoftKellySoftKenansvilleSoftKenlySoftKernersvilleSoftKill Devil HillsSoftKingSoftKings MountainSoftKingstownSoftKinstonSoftKittrellSoftKnightdaleSoftKnotts IslandSlightly HardKure BeachSoftLa GrangeSoftLake JunaluskaSoftLake LureSoftLake ToxawaySoftLake WaccamawSoftLakeviewSoftLandisSoftLansingSoftLattimoreSoftLaurel HillSoftLaurel SpringsSoftLaurinburgSoftLawndaleSoftLawsonvilleSoftLeasburgSoftLeicesterSoftLelandModerately HardLenoirSoftLewiston WoodvilSoftLewisvilleSoftLexingtonSoftLibertySlightly HardLilesvilleSoftLillingtonSoftLindenSoftLinvilleSoftLinwoodSoftLittle SwitzerlaSoftLittletonSoftLocustHardLongwoodModerately HardLouisburgSoftLowellSoftLowgapSoftLowlandVery HardLucamaSoftLumber BridgeSoftLumbertonSoftMaconSoftMadisonSoftMaggie ValleySoftMagnoliaSoftMaidenSoftMansonSoftManteoSoftMapleSlightly HardMaple HillSoftMarbleSoftMargarettsvilleSoftMariettaSoftMarionSoftMars HillSoftMarshallbergVery HardMarshvilleSoftMarstonSoftMaurySoftMaxtonSoftMayodanSoftMaysvilleSoftMc AdenvilleSoftMc FarlanSoftMc GradySoftMc LeansvilleSoftMcdonaldSoftMebaneSlightly HardMerrittVery HardMerry HillSoftMicavilleSoftMicroSoftMiddlesexSoftMiddletownModerately HardMidlandSoftMidway ParkSoftMill SpringSoftMillers CreekSoftMiltonHardMisenheimerHardMocksvilleSoftMoncureSoftMonroeSoftMontreatSoftMooresboroSoftMooresvilleSoftMoravian FallsSoftMorehead CityHardMorgantonSoftMorrisvilleSoftMorvenSoftMount AirySoftMount GileadSlightly HardMount HollySoftMount OliveSoftMount PleasantSoftMount UllaSoftMountain HomeSoftMoyockSlightly HardMurfreesboroSoftNags HeadSoftNakinaSoftNashvilleSoftNeboSoftNew BernHardNew HillSoftNew LondonHardNewportVery HardNewtonSoftNewton GroveSoftNorlinaSoftNormanSoftNorth WilkesboroSoftNorwoodHardOak CitySoftOak IslandModerately HardOak RidgeSoftOakboroHardOcean Isle BeachModerately HardOcracokeVery HardOgdenSoftOld FortSoftOlinSoftOliviaSoftOrientalVery HardOrrumSoftOttoSoftOxfordSoftPantegoHardParktonSoftPeachlandSoftPelhamModerately HardPembrokeSoftPendletonSoftPenroseSoftPfafftownSoftPikevilleSoftPilot MountainSoftPine HallSoftPine Knoll ShoreHardPine LevelSoftPinebluffSoftPinehurstSoftPineolaSoftPinetopsSoftPinetownHardPinevilleSoftPiney CreekSoftPink HillSoftPinnacleSoftPisgah ForestSoftPittsboroSoftPleasant GardenSoftPleasant HillSoftPlymouthVery HardPoint HarborSlightly HardPolktonSoftPollocksvilleModerately HardPoplar BranchSlightly HardPowells PointSlightly HardPowellsvilleSoftPrincetonSoftProspect HillSoftProvidenceSoftPurlearSoftRaefordSoftRaleighSoftRandlemanSlightly HardRed SpringsSoftReidsvilleSoftResearch TrianglSoftRexSoftRich SquareSlightly HardRichfieldModerately HardRichlandsSoftRidgewaySoftRiegelwoodSoftRoanoke RapidsSoftRoaring GapSlightly HardRoaring RiverSoftRobbinsSoftRobbinsvilleSoftRobersonvilleModerately HardRockinghamSoftRockwellSoftRocky MountSoftRocky PointSoftRodantheSoftRolesvilleSoftRondaSoftRoperHardRose HillSlightly HardRoseboroSoftRosmanSoftRougemontSoftRowlandSoftRoxboroSoftRoxobelSoftRuffinSoftRural HallSoftRutherford ColleSoftRutherfordtonSoftSaint PaulsSoftSalemburgSoftSalisburySoftSalter PathVery HardSaludaSlightly HardSalvoSoftSandy RidgeSoftSapphireSoftSaratogaSoftScotland NeckSoftScrantonSoftSeaboardSlightly HardSeagroveSoftSealevelVery HardSedaliaSoftSelmaSoftSemoraSoftSeven SpringsSoftSevernSoftShannonSoftSharpsburgSoftShawboroSlightly HardShelbySoftSherrills FordSoftShilohSoftSiler CitySoftSiloamSoftSimsSoftSmithfieldSoftSmyrnaVery HardSneads FerrySoftSnow CampSlightly HardSnow HillSoftSophiaSlightly HardSouth BrunswickModerately HardSouth MillsSoftSouthern PinesSoftSouthern ShoresSoftSpartaSoftSpencerSoftSpindaleSoftSpring HopeSoftSpring LakeSoftSpruce PineSoftStacyHardStaleySlightly HardStallingsSoftStanfieldHardStanleySoftStantonsburgSoftStarSlightly HardState RoadSoftStatesvilleSoftStedmanSoftStellaSoftStemSoftStokesSoftStokesdaleSoftStonevilleSoftStony PointSoftStovallSoftSugar GroveSoftSummerfieldSoftSunburySoftSunset BeachModerately HardSurf CitySoftSwanquarterVery HardSwansboroVery HardSylvaSoftTabor CitySoftTar HeelSoftTarawa TerraceSoftTarboroSoftTaylorsvilleSoftTeacheySoftTerrellSoftThomasvilleSoftThurmondSoftTimberlakeSoftTobaccovilleSoftToddSoftToptonSoftTownsvilleSoftTraphillSoftTrentonSlightly HardTrinitySlightly HardTroutmanSoftTroySlightly HardTryonSlightly HardTuckasegeeSoftTurkeySoftTynerSoftUnakaSoftUnion GroveSoftUnion MillsSoftValdeseSoftValeSoftVanceboroHardVassSoftVilasSoftWacoSoftWadeSoftWadesboroSoftWagramSoftWake ForestSoftWalkertownSoftWallaceSlightly HardWalnutSlightly HardWalnut CoveSoftWalstonburgSoftWancheseSoftWarneSoftWarren Wilson CoSoftWarrensvilleSoftWarrentonSoftWashingtonHardWavesSoftWaynesvilleSoftWeavervilleSoftWeddingtonSoftWeldonSoftWendellSoftWesleyan CollegeSoftWest EndSoftWest JeffersonSoftWestfieldSoftWhitakersSoftWhite OakSoftWhitevilleSoftWhitsettSoftWhittierSoftWilkesboroSoftWillardSoftWilliamstonSoftWillistonVery HardWillow SpringSoftWilmingtonSoftWilsonSoftWindsorSoftWinfallModerately HardWingateSoftWinnabowModerately HardWinston SalemSoftWintervilleSoftWintonSoftWoodleafSoftWrightsville BeaSoftYadkinvilleSoftYanceyvilleSoftYoungsvilleSoftZebulonSoftZionvilleSoftZirconiaSoft