Water Hardness in California
Average: 159 PPMModerately Hard1170 cities2,819 water systems
State report
Is California Water Hard or Soft?
California water is moderately hard on average at 159 PPM (9.3 GPG). Local readings can vary by utility, aquifer, treatment plant, and private well use.
State average
159 PPM
Moderately Hard
Local coverage
1,170 cities
2,819 water systems
Source profile
1,629 ZIPs
direct or USGS-backed
98% of covered ZIPs use treated-water records or USGS monitoring, so the state report has relatively strong source support.
State data profile
How to read the California 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
1,629 of 1,661
98% use treated-water records or USGS monitoring.
Estimated ZIP values
32 ZIPs
2% 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
159 PPM
Moderately Hard
Coverage
1,170 cities
2,819 water systems in the state rollup.
Data Source Coverage
ZIP-level source mix for California; higher direct and USGS coverage means less reliance on regional estimates.
1,661 ZIPs covered
Verified treated water
Utility, CCR, or state treated-water records
85%
1,404 ZIPs
High-confidence USGS
Environmental monitoring matched to local systems
14%
225 ZIPs
Estimated
Nearby, county, or state-level fallback values
2%
32 ZIPs
In California, 85% of ZIPs use verified treated-water records, 14% use high-confidence USGS monitoring, and 2% use estimates that should be confirmed locally for treatment decisions.
What the Data Shows in California
Hard water is common but not universal in California: 41% of classified ZIPs are hard or very hard.
California has unusually strong treated-water coverage: 85% of ZIPs use utility, CCR, or state treated-water records.
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
Soft13% (223)
Slightly Hard15% (256)
Moderately Hard30% (493)
Hard30% (498)
Very Hard11% (191)
Treatment Takeaway
For many homes in California, hardness is high enough that scale buildup, fixture spotting, and appliance wear are realistic concerns. A local test is the best starting point before sizing a softener.
How to Use This Data
The source coverage is relatively strong in California, so these pages are useful for comparing local patterns before confirming your home's exact hardness.
Source-Backed Water Systems in California
Large systems with treated-water reports or USGS monitoring behind the state rollup.
| Water system | Hardness | Source label | Population |
|---|---|---|---|
| Los Angeles-City, Dept. Of Water & Power CA1910067 - Los Angeles County | 112 PPM Slightly Hard | California treated-water report Verified - State Lab Tested | 3,875,566 |
| East Bay Mud CA0110005 - Alameda County | 20 PPM Soft | California treated-water report Verified - State Lab Tested | 1,442,800 |
| San Diego, City Of CA3710020 - San Diego County | 231 PPM Hard | California treated-water report Verified - State Lab Tested | 1,385,379 |
| San Jose Water CA4310011 - Santa Clara County | 151 PPM Moderately Hard | California treated-water report Verified - State Lab Tested | 1,039,920 |
| Sfpuc City Distribution Division CA3810011 - San Francisco County | 9 PPM Soft | California treated-water report Verified - State Lab Tested | 848,019 |
| Eastern Municipal Wd CA3310009 - Riverside County | 106 PPM Slightly Hard | California treated-water report Verified - State Lab Tested | 666,581 |
| City Of Sacramento Main CA3410020 - Sacramento County | 44 PPM Soft | California treated-water report Verified - State Lab Tested | 520,407 |
| Irvine Ranch Water District CA3010092 - Orange County | 140 PPM Moderately Hard | California treated-water report Verified - State Lab Tested | 444,800 |
Useful California 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 source badges on each city page to separate verified treated-water records from estimates.
Top 10 Hardest Water Cities
| # | City | Hardness |
|---|---|---|
| 1 | Oxnard | Very Hard (418 PPM) |
| 2 | Bardsdale | Very Hard (417 PPM) |
| 3 | Newbury Park | Very Hard (417 PPM) |
| 4 | Piru | Very Hard (417 PPM) |
| 5 | Port Hueneme | Very Hard (417 PPM) |
| 6 | San Buenaventura | Very Hard (417 PPM) |
| 7 | Santa Susana | Very Hard (417 PPM) |
| 8 | Simi Valley | Very Hard (417 PPM) |
| 9 | Somis | Very Hard (417 PPM) |
| 10 | Thousand Oaks | Very Hard (417 PPM) |
Top 10 Softest Water Cities
| # | City | Hardness |
|---|---|---|
| 1 | Groveland | Soft (11 PPM) |
| 2 | Cold Springs | Soft (12 PPM) |
| 3 | Placerville | Soft (16 PPM) |
| 4 | Georgetown | Soft (17 PPM) |
| 5 | South Lake Tahoe | Soft (17 PPM) |
| 6 | San Francisco | Soft (17 PPM) |
| 7 | Sonora | Soft (19 PPM) |
| 8 | Mi Wuk Village | Soft (20 PPM) |
| 9 | La Grange | Soft (20 PPM) |
| 10 | Twain Harte | Soft (21 PPM) |
All Cities in California
City pages marked Estimated use fallback values and should be confirmed with local testing or utility data.
AcampoSlightly HardActonModerately HardAdelaideVery HardAdelantoHardAdinSoftAgua DulceModerately HardAguangaHardAhwahneeVery HardAlamedaSlightly HardAlamoSlightly HardAlbanySlightly HardAlbionSlightly HardAlderpointModerately HardAlhambraModerately HardAliso ViejoHardAlleghanySoftAlpaughHardAlpineVery HardAltaSoftAlta LomaHardAltadenaModerately HardAltavilleSoftAlturasSlightly HardAlvisoHardAmador CitySoftAmboyHardAmerican CanyonModerately HardAnaheimHardAndersonSoftAngels CampSlightly HardAngelus OaksHardAngwinSlightly HardAnnapolisModerately HardAntiochSlightly HardAnzaHardApple ValleyHardApplegateSoftAptosHardArbuckleHardArcadiaModerately HardArgusHardArletaModerately HardArmonaModerately HardAromasHardArrowbear LakeHardArtoisHardArvinModerately HardAtascaderoVery HardAthertonHardAtwaterHardAuberryModerately HardAuburnSoftAvalonModerately HardAvenalModerately HardAverySoftAvila BeachVery HardAzusaModerately HardBadgerHardBakerHardBakersfieldModerately HardBallardVery HardBallicoHardBangorHardBanningHardBardsdaleVery HardBarstowHardBass LakeVery HardBassettModerately HardBaysideModerately HardBeale AfbHardBear ValleySoftBear Valley SpriModerately HardBeaumontHardBell GardensModerately HardBella VistaSoftBellflowerModerately HardBelmontHardBelvedereSlightly HardBen LomondHardBeniciaModerately HardBentonVery HardBerkeleySlightly HardBerry CreekHardBethel IslandSlightly HardBeverly HillsModerately HardBieberSoftBig BarSoftBig Bear CityHardBig Bear LakeHardBig BendSoftBig CreekModerately HardBig Oak FlatSoftBig PineSlightly HardBig RiverHardBig SurHardBiggsHardBiolaModerately HardBirds LandingModerately HardBlack HawkSlightly HardBlocksburgModerately HardBloomingtonHardBlue JayHardBlue LakeModerately HardBodegaModerately HardBodega BayModerately HardBodfishModerately HardBolinasSlightly HardBonitaVery HardBonsallVery HardBoonvilleSlightly HardBoronModerately HardBorrego SpringsVery HardBoulder CreekHardBoulevardVery HardBradburyModerately HardBradleyHardBranscombSlightly HardBrawleyVery HardBrentwoodSlightly HardBridgeportSoftBrisbaneHardBrookdaleHardBrooksHardBrowns ValleyHardBrownsvilleHardBryteHardBuelltonVery HardBuena ParkHardBurbankModerately HardBurneySoftBurnt RanchSoftBursonSoftButte CityModerately HardButte MeadowsHardButtonwillowModerately HardByronSlightly HardCabazonHardCalabasasModerately HardCalexicoVery HardCalifornia CityModerately HardCalifornia Hot SHardCalifornia ValleVery HardCalimesaHardCalipatriaVery HardCalistogaSlightly HardCallahanSoftCalpineSlightly HardCalwaModerately HardCamarilloVery HardCambriaVery HardCameron ParkSoftCaminoSoftCamp MeekerModerately HardCamp NelsonHardCampbellHardCampoVery HardCampo SecoSoftCamptonvilleHardCanbySoftCanoga ParkModerately HardCantua CreekModerately HardCanyon CountryModerately HardCanyon LakeHardCanyondamSoftCapayHardCapistrano BeachHardCapitolaHardCardiff By The SVery HardCarlottaModerately HardCarlsbadVery HardCarmelHardCarmel ValleyHardCarmichaelSlightly HardCarnelian BaySoftCarpinteriaVery HardCarsonModerately HardCartagoSlightly HardCaruthersModerately HardCasmaliaVery HardCasparSlightly HardCasselSoftCastaicModerately HardCastellaSoftCastro ValleySlightly HardCastrovilleHardCathedral CityHardCatheys ValleyModerately HardCayucosVery HardCazaderoModerately HardCedar GlenHardCedarvilleModerately HardCeresHardCerritosModerately HardChallengeHardChatsworthModerately HardChesterSoftChicoHardChilcootSoftChina Lake NwcModerately HardChinoHardChino HillsHardChiriaco SummitHardChowchillaVery HardChualarHardChula VistaVery HardCitrus HeightsSlightly HardCity Of CommerceModerately HardCivic CenterSlightly HardClaremontModerately HardClarksburgHardClaytonSlightly HardClearlakeModerately HardClearlake OaksHardClementsSlightly HardClioSoftClipper MillsHardCloverdaleModerately HardClovisModerately HardCoachellaHardCoalingaModerately HardCoarsegoldHardCoast Guard IslaSlightly HardCohassetHardCold SpringsSoftColeModerately HardColevilleSoftCollege HeightsModerately HardColmaHardColomaSoftColumbiaSoftColusaVery HardComptcheSlightly HardConcordSlightly HardCoolSoftCopperopolisSoftCorcoranModerately HardCorningModerately HardCorona Del MarHardCoronadoVery HardCorte MaderaSlightly HardCosta MesaHardCotatiModerately HardCoto De CazaHardCottonwoodSoftCoultervilleModerately HardCourtlandSlightly HardCoveloSlightly HardCovinaModerately HardCowan HeightsHardCrescent CitySlightly HardCrescent MillsSoftCresseyHardCrestlineHardCrestonVery HardCrockettSlightly HardCrombergSoftCrowley LakeSoftCrows LandingHardCrystalaireModerately HardCulver CityModerately HardCutlerHardCypressHardDaggettHardDaly CityHardDanvilleSlightly HardDarwinSlightly HardDavenportHardDavisHardDavis CreekSoftDeath ValleySoftDeer ParkSlightly HardDel MarVery HardDel ReyModerately HardDel Rey OaksHardDelanoModerately HardDelhiHardDenairHardDescansoVery HardDesert Hot SprinHardDiamond BarModerately HardDiamond SpringsSoftDillon BeachSlightly HardDinubaHardDobbinsHardDorrisSoftDos PalosHardDos RiosSlightly HardDouglas CitySoftDowneyModerately HardDownievilleSlightly HardDoyleSoftDublinSlightly HardDucorHardDulzuraVery HardDuncans MillsModerately HardDunlapModerately HardDunniganHardDunsmuirSoftDurhamHardDutch FlatSoftEagle MountainHardEaglevilleSoftEarlimartHardEast HighlandHardEast Los AngelesModerately HardEast Palo AltoHardEast Rancho DomiModerately HardEastonModerately HardEcho LakeSoftEdgewoodModerately HardEl CajonVery HardEl CentroVery HardEl CerritoSlightly HardEl DoradoSoftEl Dorado HillsSoftEl MaceroHardEl MonteModerately HardEl NidoHardEl PortalModerately HardEl SegundoModerately HardEl SobranteSlightly HardEldridgeModerately HardElizabeth LakeModerately HardElkSlightly HardElk CreekSlightly HardElk GroveSlightly HardElmiraModerately HardElvertaSlightly HardEmeryvilleSlightly HardEmigrant GapSoftEncinitasVery HardEncinoModerately HardEscalonSlightly HardEscondidoVery HardEspartoHardEssexHardEtiwandaHardEurekaModerately HardExeterHardFair OaksSlightly HardFairfaxSlightly HardFairfieldModerately HardFall River MillsSoftFallbrookVery HardFarmersvilleHardFarmingtonSlightly HardFawnskinHardFelicityVery HardFellowsModerately HardFeltonHardFerndaleModerately HardFiddletownSlightly HardFields LandingModerately HardFig Garden VillaModerately HardFirebaughModerately HardFish CampModerately HardFive PointsModerately HardFlintridgeModerately HardFlournoyModerately HardFontanaHardFoothill RanchHardForbestownHardForest FallsHardForest KnollsSlightly HardForesthillSoftForestvilleModerately HardForks Of SalmonSoftFort BidwellSoftFort BraggSlightly HardFort IrwinHardFort JonesSlightly HardFortunaModerately HardFoster CityHardFountain ValleyHardFowlerModerately HardFrazier ParkModerately HardFreedomHardFreestoneModerately HardFremontSlightly HardFrench CampSlightly HardFrench GulchSoftFresnoModerately HardFriantModerately HardFultonModerately HardGaltSlightly HardGarbervilleModerately HardGarden ValleySoftGardenaModerately HardGasquetSlightly HardGazelleSoftGeorge AfbHardGeorgetownSoftGerberModerately HardGeyservilleModerately HardGiant ForestHardGilman Hot SprinHardGilroyHardGlen EllenModerately HardGlencoeSoftGlendaleModerately HardGlendoraModerately HardGlenhavenHardGlennSoftGlennvilleModerately HardGold RiverSlightly HardGold RunSoftGoletaVery HardGonzalesVery HardGoodyears BarSoftGormanModerately HardGranada HillsModerately HardGrand TerraceHardGranite BaySoftGrass ValleySoftGratonModerately HardGreen Valley LakHardGreenacresModerately HardGreenfieldHardGreenviewSoftGreenvilleSoftGreenwoodSoftGrenadaModerately HardGridleyHardGrimesHardGrizzly FlatsSoftGrovelandSoftGrover BeachVery HardGuadalupeVery HardGualalaSlightly HardGuatayVery HardGuernevilleModerately HardGuindaHardGustineHardHacienda HeightsModerately HardHalcyonVery HardHalf Moon BayHardHamilton CityVery HardHanfordModerately HardHappy CampSoftHarbor CityModerately HardHat CreekSoftHathaway PinesSoftHavilahModerately HardHawaiian GardensModerately HardHayforkSoftHaywardSlightly HardHazardModerately HardHealdsburgModerately HardHeberVery HardHelenaSlightly HardHelendaleHardHelmModerately HardHemetHardHeraldSlightly HardHerculesSlightly HardHerlongSlightly HardHermosa BeachModerately HardHesperiaHardHi VistaModerately HardHickmanHardHillsboroughSlightly HardHilmarHardHinkleyHardHollisterVery HardHolly ParkModerately HardHoltvilleVery HardHomelandHardHomewoodSoftHoneydewModerately HardHoodSlightly HardHoopaModerately HardHope ValleySlightly HardHoplandSlightly HardHornbrookSoftHornitosModerately HardHughsonHardHumeModerately HardHuntington BeachHardHuntington ParkModerately HardHuronModerately HardHyampomSoftHydesvilleModerately HardIdyllwildHardIgoSoftImperialVery HardImperial BeachVery HardIndependenceSoftIndian WellsHardIndioHardIndustryModerately HardInglewoodModerately HardInvernessSlightly HardIoneSoftIowa HillSoftIrwindaleModerately HardIsletonSlightly HardIvanhoeHardJacksonSlightly HardJacumbaVery HardJamestownSoftJamulVery HardJanesvilleSoftJennerModerately HardJohannesburgModerately HardJolonHardJoshua TreeHardJulianVery HardJune LakeSoftJuniper HillsModerately HardKeelerSlightly HardKeeneModerately HardKelseyvilleHardKensingtonSlightly HardKentfieldSlightly HardKenwoodModerately HardKermanModerately HardKernvilleModerately HardKettleman CityModerately HardKeyesHardKing CityHardKings BeachSoftKingsburgModerately HardKirkwoodSoftKlamathSlightly HardKlamath RiverSoftKneelandModerately HardKnights FerryHardKnights LandingHardKorbelModerately HardKyburzSoftLa CrescentaModerately HardLa GrangeSoftLa Habra HeightsHardLa HondaHardLa JollaVery HardLa MesaVery HardLa MiradaModerately HardLa PorteHardLa QuintaHardLa Selva BeachHardLa VerneModerately HardLaderaHardLafayetteSlightly HardLaguna HillsHardLaguna NiguelHardLagunitasSlightly HardLake ArrowheadHardLake CitySoftLake ElsinoreHardLake ForestHardLake Los AngelesModerately HardLakeheadSoftLakeportModerately HardLakeshoreModerately HardLakesideVery HardLakeviewHardLakewoodModerately HardLamontModerately HardLancasterModerately HardLandersHardLarkspurSlightly HardLathropSlightly HardLatonModerately HardLawndaleModerately HardLaytonvilleSlightly HardLe GrandHardLee ViningSlightly HardLeggettSlightly HardLemon GroveVery HardLemoncoveHardLemoore Naval AiModerately HardLennoxModerately HardLeona ValleyModerately HardLewistonModerately HardLiberty FarmsModerately HardLikelySoftLincolnSoftLindenSlightly HardLindsayHardLitchfieldSoftLittleriverSlightly HardLive OakSlightly HardLivermoreSlightly HardLivingstonHardLoch LomondHardLockefordSlightly HardLockwoodHardLodiSlightly HardLoletaModerately HardLoma LindaHardLoma MarHardLompocVery HardLone PineSlightly HardLong BeachModerately HardLookoutSoftLoomisSoftLos AlamosVery HardLos AltosHardLos AngelesModerately HardLos BanosHardLos GatosHardLos MolinosModerately HardLos NietosModerately HardLos OlivosVery HardLos OsosVery HardLost HillsModerately HardLost LakeHardLotusSoftLower LakeHardLoyaltonSlightly HardLucerneHardLucerne ValleyHardLudlowHardLynwoodModerately HardLytle CreekHardMacdoelSlightly HardMad RiverSoftMadelineSoftMaderaVery HardMadisonHardMagaliaHardMalibuModerately HardManchesterSlightly HardManhattan BeachModerately HardMantecaSlightly HardMantonModerately HardMarch Air ForceHardMare IslandModerately HardMaricopaModerately HardMarinaHardMarina Del ReyModerately HardMariposaSoftMarshallSlightly HardMarysvilleHardMather AfbSlightly HardMaxwellHardMaywoodModerately HardMc FarlandModerately HardMc KinleyvilleModerately HardMc KittrickModerately HardMcarthurSoftMccloudSoftMead ValleyHardMeadow ValleySoftMeadow VistaSoftMeccaHardMendocinoSlightly HardMendotaModerately HardMenifeeHardMentoneHardMercedHardMeridianSoftMi Wuk VillageSoftMiddletownHardMidpinesModerately HardMidway CityHardMilfordSoftMill CreekModerately HardMill ValleySlightly HardMillbraeHardMillvilleSoftMilpitasHardMineralModerately HardMira LomaHardMiramonteModerately HardMirandaModerately HardMission HillsModerately HardMission ViejoHardModestoHardMojaveModerately HardMokelumne HillSoftMonarch BayHardMonroviaModerately HardMontagueSlightly HardMontaraHardMontclairHardMonte SerenoHardMonte VistaHardMontebelloModerately HardMontecitoVery HardMonterey ParkModerately HardMontgomery CreekSoftMontroseModerately HardMoorparkVery HardMoragaSlightly HardMoreno ValleyHardMorgan HillHardMorongo ValleyHardMorro BayVery HardMoss BeachHardMoss LandingHardMount HamiltonHardMount HermonHardMount LagunaVery HardMount ShastaSoftMountain CenterHardMountain MesaModerately HardMountain RanchSoftMountain ViewHardMt BaldyModerately HardMurphysSoftMurrietaHardMuscoyHardMyers FlatModerately HardNapaSlightly HardNational CityVery HardNavarroSlightly HardNeedlesHardNevada CitySoftNew CuyamaVery HardNewarkSlightly HardNewberry SpringsHardNewbury ParkVery HardNewcastleSoftNewhallModerately HardNewmanHardNewport BeachHardNicasioSlightly HardNiceHardNilandVery HardNipomoVery HardNiptonHardNorth EdwardsModerately HardNorth ForkVery HardNorth HighlandsSlightly HardNorth HillsModerately HardNorth HollywoodModerately HardNorth Palm SprinHardNorth San JuanSoftNorthridgeModerately HardNorwalkModerately HardNovatoSlightly HardNubieberSoftO NealsVery HardOak ParkModerately HardOak RunSoftOak ViewVery HardOakhurstVery HardOaklandSlightly HardOakleySlightly HardOccidentalModerately HardOceanoVery HardOceansideVery HardOcotilloVery HardOjaiVery HardOld StationSoftOlemaSlightly HardOlivehurstHardOlympic ValleySoftOntarioHardOnyxModerately HardOrange CoveModerately HardOrangevaleSlightly HardOrcuttVery HardOregon HouseHardOrickModerately HardOrindaSlightly HardOrlandHardOrleansModerately HardOro GrandeHardOrosiHardOrovilleHardOxnardVery HardPachecoSlightly HardPacific GroveHardPacific HouseSoftPacific PalisadeModerately HardPacificaHardPaicinesVery HardPalaVery HardPalermoHardPalm CityHardPalm DesertHardPalm SpringsHardPalmdaleModerately HardPalo AltoHardPalo CedroSoftPalo VerdeVery HardPalomar MountainVery HardPalos Verdes EstModerately HardPanorama CityModerately HardParadiseHardParamountModerately HardParker DamHardParkfieldVery HardParlierModerately HardPasadenaModerately HardPaskentaModerately HardPattersonHardPauma ValleyVery HardPaynes CreekModerately HardPearsonvilleModerately HardPebble BeachHardPeninsula VillagSoftPenn ValleySoftPenngroveModerately HardPenrynSoftPerrisHardPescaderoHardPetalumaModerately HardPetroliaModerately HardPhelanHardPhillips RanchModerately HardPhillipsvilleModerately HardPhiloSlightly HardPico RiveraModerately HardPiedmontSlightly HardPiercySlightly HardPilot HillSoftPine GroveSlightly HardPine ValleyVery HardPinecrestSoftPinedaleModerately HardPinoleSlightly HardPinon HillsHardPioneerSoftPioneertownHardPiruVery HardPixleyHardPlacervilleSoftPlanadaHardPlaya Del ReyModerately HardPleasant GroveSoftPleasant HillSlightly HardPleasantonSlightly HardPlymouthSlightly HardPoint ArenaSlightly HardPoint Reyes StatSlightly HardPomonaModerately HardPondModerately HardPope ValleySlightly HardPort CostaSlightly HardPort HuenemeVery HardPorter RanchModerately HardPortervilleHardPortolaSlightly HardPoseyHardPotreroVery HardPotter ValleySlightly HardPowayVery HardPratherModerately HardPrincetonModerately HardPrunedaleHardPulgaHardQuartz HillModerately HardQuincySoftRackerbyHardRaisinModerately HardRamonaVery HardRanchitaVery HardRancho CordovaSlightly HardRancho CucamongaHardRancho DominguezModerately HardRancho MirageHardRancho MurietaSlightly HardRancho Palos VerModerately HardRancho Santa FeVery HardRancho Santa MarHardRandsburgModerately HardRavendaleSoftRaymondVery HardRed BluffModerately HardRed TopHardRedcrestModerately HardReddingSoftRedlandsHardRedondo BeachModerately HardRedwayModerately HardRedwood CityHardRedwood ValleySlightly HardReedleyModerately HardRescueSoftResedaModerately HardRialtoHardRichardson SprinHardRichgroveHardRichmondSlightly HardRichvaleHardRio DellModerately HardRio LindaSlightly HardRio NidoModerately HardRio OsoSoftRio VistaModerately HardRiponSlightly HardRiver PinesSlightly HardRiverbankHardRiverdaleModerately HardRiversideHardRobbinsSoftRocklinSoftRodeoSlightly HardRohnert ParkModerately HardRomolandHardRosemeadModerately HardRosevilleSoftRosewoodModerately HardRossmoorHardRough And ReadySoftRound MountainSoftRowland HeightsModerately HardRubidouxHardRussian RiverHardRussian River MdModerately HardRuthModerately HardSacramentoSlightly HardSaint HelenaSlightly HardSalidaHardSalinasHardSalton CityVery HardSalyerSoftSamoaModerately HardSan AndreasSoftSan AnselmoSlightly HardSan ArdoHardSan BernardinoHardSan BrunoHardSan BuenaventuraVery HardSan CarlosHardSan ClementeHardSan DiegoVery HardSan DimasModerately HardSan FernandoModerately HardSan FranciscoSoftSan GabrielModerately HardSan GeronimoSlightly HardSan GregorioHardSan JacintoHardSan JoaquinModerately HardSan JoseHardSan Juan BautistVery HardSan LeandroSlightly HardSan LorenzoSlightly HardSan LucasHardSan Luis ObispoVery HardSan MarcosVery HardSan MarinoModerately HardSan MartinHardSan MateoHardSan PabloSlightly HardSan PedroModerately HardSan QuentinSlightly HardSan RafaelSlightly HardSan RamonSlightly HardSan SimeonVery HardSan YsidroVery HardSand CityHardSangerModerately HardSanta AnaHardSanta Ana HeightHardSanta BarbaraVery HardSanta ClaraHardSanta CruzHardSanta Fe SpringsModerately HardSanta MariaVery HardSanta MonicaModerately HardSanta PaulaVery HardSanta RosaModerately HardSanta SusanaVery HardSanta YnezVery HardSanta YsabelVery HardSanteeVery HardSaratogaHardSausalitoSlightly HardSawyers BarSoftScotiaModerately HardScott BarSoftScotts ValleyHardSeal BeachHardSeeleyVery HardSeiad ValleyModerately HardSelmaModerately HardShadow HillsModerately HardShafterModerately HardShandonVery HardShastaSoftShasta LakeSoftShaver LakeModerately HardShell BeachVery HardSheridanSoftSherman OaksModerately HardShingletownSoftShore AcresSlightly HardShoshoneSlightly HardSierra CitySoftSierra MadreModerately HardSierravilleSlightly HardSignal HillModerately HardSilveradoHardSimi ValleyVery HardSmartvilleSoftSmith RiverSlightly HardSnellingHardSoda SpringsSoftSolana BeachVery HardSoledadHardSomersetSoftSomes BarSoftSomisVery HardSonomaModerately HardSonoraSoftSoquelHardSoulsbyvilleSoftSouth Dos PalosHardSouth El MonteModerately HardSouth GateModerately HardSouth Lake TahoeSoftSouth PasadenaModerately HardSouth San FranciHardSpanish FlatSlightly HardSpreckelsHardSpring ValleyVery HardSpring Valley LaHardSpringvilleHardSquaw ValleyModerately HardStandishSoftStanfordHardStantonHardStevinsonHardStewarts PointModerately HardStinson BeachSlightly HardStirling CityHardStocktonSlightly HardStonyfordSoftStratfordModerately HardStrathmoreHardStudio CityModerately HardSugarloafHardSuisun CityModerately HardSultanaHardSummerlandVery HardSun CityHardSun ValleyModerately HardSunnyvaleHardSunolSlightly HardSunset BeachHardSurfsideHardSusanvilleSoftSutterSlightly HardSutter CreekSlightly HardSylmarModerately HardTaftModerately HardTahoe CitySoftTahoe VistaSoftTahomaSoftTarzanaModerately HardTaylorsvilleSoftTecateVery HardTecopaSlightly HardTehamaModerately HardTemeculaHardTemple CityModerately HardTempletonVery HardTermoSoftTerra BellaHardThe Sea RanchModerately HardThorntonSlightly HardThousand OaksVery HardThousand PalmsHardThree RiversHardTiptonHardTollhouseModerately HardToluca LakeModerately HardTomalesSlightly HardToms PlaceSlightly HardTopangaModerately HardTopazSoftTorranceModerately HardTracySlightly HardTranquillityModerately HardTraverHardTravis AfbModerately HardTrinity CenterSlightly HardTrowbridgeSoftTruckeeSoftTujungaModerately HardTulareHardTulelakeHardTuolumneSoftTupmanModerately HardTurlockHardTwainSoftTwain HarteSoftTwentynine PalmsHardTwin BridgesSoftUkiahSlightly HardUnion CitySlightly HardUniversal CityModerately HardUplandHardUpper LakeHardVacavilleModerately HardValenciaModerately HardVallecitoSoftVallejoModerately HardValley CenterVery HardValley FordModerately HardValley SpringsSoftValley VillageModerately HardValyermoModerately HardVan NuysModerately HardVeniceModerately HardVernalisHardVernonModerately HardVidalHardVinaModerately HardVisaliaHardVistaVery HardVolcanoSoftWallaceSoftWalnut CreekSlightly HardWalnut GroveSlightly HardWarner SpringsVery HardWashingtonSoftWaterfordHardWeavervilleSlightly HardWeimarSoftWeldonModerately HardWendelSoftWeottModerately HardWest CovinaModerately HardWest HillsModerately HardWest HollywoodModerately HardWest Menlo ParkHardWest PointSoftWest SacramentoHardWesthavenModerately HardWestlake VillageVery HardWestleyHardWestminsterHardWestmorlandVery HardWestportSlightly HardWheatlandHardWhite WaterHardWhitethornModerately HardWhitmoreSoftWhittierModerately HardWildomarHardWildwoodSoftWilliamsModerately HardWillitsSlightly HardWillow CreekModerately HardWillow SpringsModerately HardWillowsSoftWilmingtonModerately HardWilseyvilleSoftWiltonSlightly HardWinchesterHardWindsorModerately HardWinnetkaModerately HardWintersHardWintonHardWishonVery HardWitter SpringsHardWofford HeightsModerately HardWoodacreSlightly HardWoodbridgeSlightly HardWoodlakeHardWoodlandHardWoodland HillsModerately HardWoodsideHardWoodyModerately HardWrightwoodHardYermoHardYorkvilleSlightly HardYosemite LodgeSoftYountvilleSlightly HardYrekaHardYuba CitySoftYucaipaHardYucca ValleyHardZeniaSoft