How hard is the water in Oklahoma?

The average water hardness across Oklahoma is 296 PPM (17.3 GPG), classified as very hard. Hardness varies by city - the hardest water is in Altus (894 PPM) and the softest is in Sawyer (2 PPM).

What city in Oklahoma has the hardest water?

Altus has the hardest water in Oklahoma at 894 PPM. A water softener is recommended for residents.

How many water systems are in Oklahoma?

Oklahoma has 889 active community water systems serving 561 cities.

Water Hardness in Oklahoma

Average: 296 PPMVery Hard561 cities889 water systems

Top 10 Hardest Water Cities

#	City	Hardness
1	Altus	Very Hard (894 PPM)
2	Bessie	Very Hard (894 PPM)
3	Cherokee	Very Hard (894 PPM)
4	Cordell	Very Hard (894 PPM)
5	Crawford	Very Hard (894 PPM)
6	Davidson	Very Hard (894 PPM)
7	Devol	Very Hard (894 PPM)
8	Durham	Very Hard (894 PPM)
9	Eldorado	Very Hard (894 PPM)
10	Elmer	Very Hard (894 PPM)

Top 10 Softest Water Cities

#	City	Hardness
1	Sawyer	Soft (2 PPM)
2	Soper	Soft (2 PPM)
3	Coleman	Soft (3 PPM)
4	Lehigh	Soft (3 PPM)
5	Gould	Soft (5 PPM)
6	Granite	Soft (5 PPM)
7	Hollis	Soft (5 PPM)
8	Hollister	Soft (5 PPM)
9	Lone Wolf	Soft (5 PPM)
10	Reed	Soft (5 PPM)

All Cities in Oklahoma

AchilleVery Hard AdaVery Hard AdairHard AdamsVery Hard AddingtonModerately Hard AgraVery Hard AlbanyVery Hard AlbionVery Hard AldersonModerately Hard AlexVery Hard AlineVery Hard AllenVery Hard AltusVery Hard AlvaModerately Hard AmberVery Hard AmesVery Hard AmoritaVery Hard AnadarkoVery Hard AntlersVery Hard ApacheModerately Hard ArapahoVery Hard ArcadiaModerately Hard ArkomaSoft AsherHard AtokaVery Hard AtwoodModerately Hard AvantVery Hard BakerVery Hard BalkoModerately Hard BarnsdallHard BartlesvilleVery Hard BattiestSlightly Hard BeardenModerately Hard BeggsSlightly Hard BenningtonVery Hard BerniceSlightly Hard BessieVery Hard BethanyModerately Hard BethelSlightly Hard Big CabinVery Hard BillingsVery Hard BingerModerately Hard BisonHard BixbyModerately Hard BlackwellVery Hard BlairVery Hard BlanchardHard BlancoModerately Hard BluejacketModerately Hard Boise CityHard BokchitoVery Hard BokosheSoft BoleyVery Hard BoswellVery Hard BowlegsModerately Hard BoyntonSlightly Hard BradleyVery Hard BraggsSlightly Hard BramanVery Hard BristowModerately Hard Broken ArrowModerately Hard Broken BowVery Hard BromideVery Hard BunchModerately Hard BurbankVery Hard BurlingtonVery Hard BurneyvilleVery Hard Burns FlatVery Hard ButlerVery Hard ByarsHard CacheSlightly Hard CaddoVery Hard CaleraVery Hard CalumetVery Hard CalvinVery Hard CamargoHard CameronSlightly Hard CanadianModerately Hard CaneyHard CantonVery Hard CanuteVery Hard CarmenVery Hard CarnegieModerately Hard CarneyHard CarrierHard CarterVery Hard CartwrightVery Hard CashionVery Hard CastleModerately Hard CatoosaVery Hard CementModerately Hard CentrahomaModerately Hard ChandlerVery Hard ChattanoogaSlightly Hard ChecotahSlightly Hard ChelseaVery Hard CherokeeVery Hard ChesterVery Hard ChickashaVery Hard ChoctawModerately Hard ChouteauSlightly Hard ClaremoreVery Hard ClaritaVery Hard ClaytonVery Hard Cleo SpringsVery Hard ClevelandHard ClintonVery Hard CoalgateHard ColbertVery Hard ColcordModerately Hard ColemanSoft CollinsvilleModerately Hard ColonyModerately Hard ComancheVery Hard CommerceModerately Hard ConchoVery Hard ConnervilleModerately Hard CooksonSlightly Hard CopanVery Hard CordellVery Hard CornVery Hard Council HillSlightly Hard CovingtonHard CowetaSlightly Hard CoyleVery Hard CrawfordVery Hard CrescentVery Hard CromwellModerately Hard CrowderModerately Hard CushingModerately Hard Custer CityVery Hard CyrilModerately Hard DacomaVery Hard DaisySlightly Hard DavenportVery Hard DavidsonVery Hard DavisVery Hard Deer CreekVery Hard Del CityModerately Hard DelawareVery Hard DepewModerately Hard DevolVery Hard DewarSlightly Hard DeweyVery Hard DibbleHard Dill CityVery Hard DisneyModerately Hard DoughertyVery Hard DouglasHard DoverVery Hard DrummondHard DrumrightModerately Hard DukeVery Hard DuncanVery Hard DurantVery Hard DurhamVery Hard DustinModerately Hard Eagle CityVery Hard EagletownSlightly Hard EaklyModerately Hard EarlsboroHard EdmondModerately Hard El RenoVery Hard EldoradoVery Hard ElginSlightly Hard Elk CityVery Hard ElmerVery Hard ElmwoodModerately Hard EnidHard ErickVery Hard EuchaModerately Hard EufaulaSlightly Hard FairfaxVery Hard FairlandModerately Hard FairmontHard FanshaweModerately Hard FargoHard FaxonSlightly Hard FayModerately Hard FeltVery Hard FinleySlightly Hard FittstownVery Hard FitzhughVery Hard FletcherSlightly Hard ForakerVery Hard ForganVery Hard Fort CobbModerately Hard Fort GibsonSlightly Hard Fort SillSlightly Hard Fort SupplyModerately Hard Fort TowsonVery Hard FossVery Hard FoxVery Hard FrancisVery Hard FrederickVery Hard FreedomModerately Hard GageHard GansSlightly Hard GarberHard GarvinVery Hard GateHard GearyHard GeronimoSlightly Hard GlencoeModerately Hard GlenpoolModerately Hard GoldenModerately Hard GoltryVery Hard GoodwellVery Hard GoreSlightly Hard GoteboModerately Hard GouldSoft GracemontModerately Hard GradyVery Hard GrahamVery Hard GrandfieldVery Hard GraniteSoft GrantVery Hard GreenfieldHard GroveSlightly Hard GuthrieHard GuymonVery Hard HaileyvilleModerately Hard HallettModerately Hard HammonHard Harden CityVery Hard HardestyVery Hard HarmonHard HarrahModerately Hard HartshorneHard HaskellSlightly Hard HastingsVery Hard HeadrickVery Hard HealdtonVery Hard HeavenerSoft HelenaVery Hard HendrixVery Hard HennesseyVery Hard HillsdaleHard HintonSlightly Hard HitchcockVery Hard HitchitaModerately Hard HobartVery Hard HodgenSoft HoffmanSlightly Hard HoldenvilleModerately Hard HollisSoft HollisterSoft HominyHard HonobiaSlightly Hard HopetonVery Hard HoweSoft HugoVery Hard HulbertSlightly Hard HunterHard HydroHard IdabelVery Hard IndiahomaSlightly Hard IndianolaModerately Hard InolaVery Hard IsabellaModerately Hard JaySlightly Hard JenksModerately Hard JenningsModerately Hard JetVery Hard JonesModerately Hard KansasModerately Hard Kaw CityVery Hard KellyvilleModerately Hard KempVery Hard KendrickVery Hard KeneficSlightly Hard KentonVery Hard KeotaSoft KetchumVery Hard KeyesHard KieferModerately Hard KingfisherVery Hard KingstonVery Hard KintaModerately Hard KiowaModerately Hard KonawaModerately Hard KrebsModerately Hard KremlinHard LahomaHard LamarModerately Hard LamontVery Hard LaneHard LangleyModerately Hard LangstonVery Hard LaverneHard LawtonSlightly Hard LeachModerately Hard LebanonVery Hard LeedeyHard LefloreModerately Hard LehighSoft LenapahVery Hard LeonVery Hard LequireModerately Hard LexingtonModerately Hard LindsayVery Hard LocoVery Hard Locust GroveSlightly Hard Lone GroveVery Hard Lone WolfSoft LongdaleVery Hard LookebaModerately Hard LovelandSlightly Hard LoyalVery Hard LucienModerately Hard LutherModerately Hard MacombHard ManchesterVery Hard ManitouSlightly Hard MannfordModerately Hard MannsvilleHard MaramecModerately Hard Marble CitySlightly Hard MariettaVery Hard MarlandModerately Hard MarlowVery Hard MarshallVery Hard MarthaVery Hard MaudHard MayModerately Hard MaysvilleVery Hard Mc LoudHard Mc MillanVery Hard McalesterModerately Hard MccurtainSlightly Hard MeadVery Hard MedfordVery Hard Medicine ParkSlightly Hard MeekerHard MenoVery Hard MeridianModerately Hard MiamiModerately Hard Midwest CityModerately Hard MilburnVery Hard Mill CreekVery Hard MillertonVery Hard MiloVery Hard MincoVery Hard MoffettSlightly Hard MonroeSoft MooreModerately Hard MoorelandModerately Hard MorrisSlightly Hard MorrisonVery Hard MoundsSlightly Hard Mountain ParkVery Hard Mountain ViewModerately Hard MoyersSlightly Hard MuldrowSlightly Hard MulhallHard MuseSlightly Hard MuskogeeSlightly Hard MustangVery Hard MutualModerately Hard NardinVery Hard NashVery Hard NashobaVery Hard New LimaModerately Hard NewallaModerately Hard NewcastleHard Nichols HillsModerately Hard Nicoma ParkModerately Hard NinnekahVery Hard NobleModerately Hard NormanModerately Hard North MiamiModerately Hard NowataVery Hard OakhurstModerately Hard OchelataVery Hard OctaviaSoft OiltonModerately Hard OkarcheVery Hard OkayModerately Hard OkeeneVery Hard Okla Univ StudenModerately Hard Oklahoma CityModerately Hard OkmulgeeSlightly Hard OktahaSlightly Hard OlusteeVery Hard OmegaModerately Hard OologahVery Hard OptimaVery Hard OrientaVery Hard OrlandoVery Hard OsageVery Hard OverbrookModerately Hard OwassoModerately Hard PadenVery Hard PanamaSoft PaoliSlightly Hard Park HillSlightly Hard Pauls ValleyVery Hard PawhuskaVery Hard PawneeVery Hard PeckhamVery Hard PeggsSlightly Hard PerkinsModerately Hard PerryVery Hard PicherModerately Hard PiedmontVery Hard PittsburgModerately Hard PlatterVery Hard PocassetVery Hard PocolaSoft Ponca CityVery Hard Pond CreekVery Hard PorterModerately Hard PorumSlightly Hard PoteauSoft PragueVery Hard PrestonSlightly Hard ProctorModerately Hard PrueVery Hard PryorSlightly Hard PurcellVery Hard PutnamModerately Hard QuapawModerately Hard QuintonModerately Hard RalstonHard RamonaVery Hard RandlettVery Hard RattanSlightly Hard RaviaHard Red OakSoft Red RockVery Hard ReedSoft RentiesvilleModerately Hard ReydonHard RinglingVery Hard RingoldModerately Hard RingwoodVery Hard RipleyModerately Hard RockyVery Hard RoffVery Hard RolandSlightly Hard RooseveltVery Hard RosstonModerately Hard RubottomVery Hard RufeModerately Hard Rush SpringsVery Hard RyanVery Hard S CoffeyvilleVery Hard Saint LouisHard SalinaSlightly Hard SallisawSlightly Hard Sand SpringsModerately Hard SapulpaModerately Hard SasakwaModerately Hard SavannaModerately Hard SawyerSoft SayreVery Hard SchulterSlightly Hard SeilingVery Hard SelmanModerately Hard SeminoleModerately Hard SentinelVery Hard Shady PointModerately Hard ShamrockModerately Hard SharonModerately Hard ShattuckHard ShawneeHard SkiatookVery Hard SlickModerately Hard SnowSlightly Hard SnyderVery Hard SoperSoft SparksVery Hard SpavinawSlightly Hard SpencerModerately Hard SpencervilleModerately Hard SperryModerately Hard SpiroSoft SpringerVery Hard SterlingSlightly Hard StiglerSlightly Hard StillwaterModerately Hard StilwellSlightly Hard StrangSlightly Hard StratfordHard StringtownVery Hard Strong CityVery Hard StuartVery Hard SulphurVery Hard SweetwaterVery Hard SwinkVery Hard TaftSlightly Hard TahlequahSlightly Hard TalalaVery Hard TalihinaVery Hard TalogaHard TecumsehHard TempleVery Hard TerltonSlightly Hard TexhomaVery Hard TexolaVery Hard ThackervilleVery Hard ThomasVery Hard Tinker AfbModerately Hard TiptonVery Hard TishomingoHard TomVery Hard TonkawaVery Hard TryonHard TulsaModerately Hard TupeloVery Hard TuskahomaSlightly Hard TuttleVery Hard Twin OaksModerately Hard TyroneVery Hard Union CityVery Hard ValliantVery Hard VerdenVery Hard VernonSoft VianSlightly Hard ViciHard VinitaVery Hard VinsonSlightly Hard WagonerModerately Hard WainwrightSlightly Hard WakitaVery Hard WaltersVery Hard WanetteHard WannModerately Hard WapanuckaVery Hard WardvilleModerately Hard WarnerSlightly Hard Warr AcresModerately Hard WashingtonVery Hard WatongaHard WatsonSlightly Hard WattsSlightly Hard WaukomisHard WaurikaVery Hard WayneSlightly Hard WaynokaModerately Hard WeatherfordVery Hard Webbers FallsSlightly Hard WelchModerately Hard WeleetkaModerately Hard WellingSlightly Hard WellstonVery Hard WestvilleSlightly Hard WetumkaModerately Hard WheatlandModerately Hard WhitefieldModerately Hard WhitesboroSoft WilburtonSlightly Hard WillowVery Hard WisterSoft WoodwardModerately Hard Wright CityVery Hard WyandotteModerately Hard WynnewoodVery Hard WynonaVery Hard YaleModerately Hard YukonVery Hard