How hard is the water in Utah?

The average water hardness across Utah is 290 PPM (16.9 GPG), classified as very hard. Hardness varies by city - the hardest higher-confidence city page is Manila (1158 PPM) and the softest is Bluff (11 PPM).

What city in Utah has the hardest water?

Manila has the hardest water among higher-confidence Utah city pages at 1158 PPM. A water softener is recommended for residents.

How many water systems are in Utah?

Utah has 507 active community water systems serving 242 cities.

Water Hardness in Utah

Average: 290 PPMVery Hard242 cities507 water systems

State data profile

How to read the Utah 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

237 of 272

87% use treated-water records or USGS monitoring.

Estimated ZIP values

35 ZIPs

13% 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

290 PPM

Very Hard

Coverage

242 cities

507 water systems in the state rollup.

Data Source Coverage

ZIP-level source mix for Utah; higher direct and USGS coverage means less reliance on regional estimates.

272 ZIPs covered

Verified treated water

Utility, CCR, or state treated-water records

52%

141 ZIPs

High-confidence USGS

Environmental monitoring matched to local systems

35%

96 ZIPs

Estimated

Nearby, county, or state-level fallback values

13%

35 ZIPs

In Utah, 52% of ZIPs use verified treated-water records, 35% use high-confidence USGS monitoring, and 13% use estimates that should be confirmed locally for treatment decisions.

What the Data Shows in Utah

Hard or very hard water is widespread in Utah, covering 89% of classified ZIPs.

Utah has unusually strong treated-water coverage: 52% 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

Soft1% (4)

Slightly Hard3% (7)

Moderately Hard7% (18)

Hard44% (119)

Very Hard46% (124)

Treatment Takeaway

For many homes in Utah, 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 Utah, so these pages are useful for comparing local patterns before confirming your home's exact hardness.

Useful Utah 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	Manila	Very Hard (1158 PPM)
2	Castle Dale	Very Hard (1125 PPM)
3	Cleveland	Very Hard (1120 PPM)
4	Green River	Very Hard (1000 PPM)
5	Big Water	Very Hard (963 PPM)
6	Leamington	Very Hard (959 PPM)
7	Price	Very Hard (719 PPM)
8	Scipio	Very Hard (702 PPM)
9	Levan	Very Hard (617 PPM)
10	Bicknell	Very Hard (545 PPM)

Top 10 Softest Water Cities

#	City	Hardness
1	Bluff	Soft (11 PPM)
2	Talmage	Soft (29 PPM)
3	Beaver	Soft (51 PPM)
4	Junction	Soft (51 PPM)
5	Mexican Hat	Slightly Hard (82 PPM)
6	Fremont	Slightly Hard (84 PPM)
7	Greenwich	Slightly Hard (84 PPM)
8	Henrieville	Slightly Hard (84 PPM)
9	Venice	Slightly Hard (84 PPM)
10	Blanding	Slightly Hard (86 PPM)

All Cities in Utah

City pages marked Estimated use fallback values and should be confirmed with local testing or utility data.

AlpineHard AltaHard AltamontModerately Hard AltonHard AltonahHard American ForkHard AnnabellaVery Hard AntimonyModerately Hard AuroraVery Hard AustinVery Hard AxtellModerately Hard Bear River CityVery Hard BeaverSoft BerylVery Hard BicknellVery Hard Big WaterVery Hard Bingham CanyonHard BlandingSlightly Hard BluebellHard BluffSoft BoulderVery Hard BountifulHard Brian HeadVery Hard Brigham CityHard BryceVery Hard BullfrogModerately Hard Cache JunctionHard CannonvilleVery Hard Castle DaleVery Hard Cedar ValleyHard CenterfieldModerately Hard CentervilleHard CentralVery Hard ChesterHard CirclevilleModerately Hard ClarkstonHard ClawsonHard ClearfieldHard ClevelandVery Hard CoalvilleHard CollinstonVery Hard CorinneVery Hard CottonwoodHard CroydonVery Hard Dammeron ValleyVery Hard DeltaModerately Hard DeweyvilleVery Hard DraperHard DuchesneHard Duck Creek VillaVery Hard DugwayVery Hard Dutch JohnVery Hard East CarbonVery Hard EchoVery Hard EdenHard ElbertaHard ElmoHard ElsinoreVery Hard EmeryHard EnterpriseVery Hard EphraimVery Hard EscalanteHard EurekaVery Hard FairviewVery Hard FarmingtonHard FayetteVery Hard FerronHard FieldingVery Hard FillmoreVery Hard Fort DuchesneVery Hard Fountain GreenVery Hard FremontSlightly Hard FruitlandHard Garden CityVery Hard GarlandVery Hard GarrisonModerately Hard GenolaHard GlendaleModerately Hard GlenwoodVery Hard GoshenHard GrantsvilleVery Hard Green RiverVery Hard GreenvilleVery Hard GreenwichSlightly Hard Grouse CreekVery Hard GunlockVery Hard GunnisonVery Hard HanksvilleHard HannaHard HatchHard Heber CityVery Hard HelperVery Hard HeneferVery Hard HenrievilleSlightly Hard Hill Air Force BHard HinckleyModerately Hard HoldenVery Hard HolladayHard HoneyvilleVery Hard HooperHard HowellVery Hard HuntingtonHard HuntsvilleHard HurricaneVery Hard Hyde ParkHard HyrumHard IbapahVery Hard IvinsVery Hard JensenVery Hard JosephVery Hard JunctionSoft KamasVery Hard KanoshVery Hard KaysvilleHard KearnsHard KenilworthHard KingstonModerately Hard KoosharemVery Hard La SalHard La VerkinVery Hard LaketownVery Hard LapointVery Hard LarkHard LaytonHard LeamingtonVery Hard LehiHard LevanVery Hard LewistonHard LindonHard LoganHard LymanVery Hard LynndylModerately Hard MagnaHard ManilaVery Hard MantiVery Hard MantuaVery Hard MapletonHard MarysvaleModerately Hard MayfieldVery Hard MendonHard Mexican HatSlightly Hard MidvaleHard MidwayVery Hard MilfordVery Hard MillvilleHard MinersvilleVery Hard MoabHard ModenaVery Hard MonaVery Hard Montezuma CreekHard MonticelloSlightly Hard MorganVery Hard MoroniVery Hard Mount CarmelVery Hard Mount PleasantVery Hard Mountain HomeHard MurrayHard MytonModerately Hard NeolaHard NephiVery Hard New HarmonyVery Hard NewtonHard North Salt LakeHard Oak CityVery Hard OakleyVery Hard OgdenHard OrangevilleHard OrdervilleHard OremHard PanguitchModerately Hard ParadiseHard ParagonahVery Hard Park CityVery Hard Park ValleyVery Hard ParowanVery Hard PaysonHard PeoaVery Hard Pine ValleyVery Hard PinturaVery Hard Pleasant GroveHard PlymouthVery Hard PortageVery Hard PriceVery Hard ProvidenceHard ProvoHard RandlettVery Hard RandolphHard RedmondModerately Hard RichmondHard RiversideVery Hard RooseveltModerately Hard RoyHard Rush ValleyVery Hard SalinaModerately Hard Salt Lake CityHard SandyHard Santa ClaraVery Hard ScipioVery Hard SevierVery Hard SigurdVery Hard SmithfieldVery Hard SnowvilleVery Hard South JordanHard South Salt LakeHard Spanish ForkHard Spring CityVery Hard SpringvilleHard St GeorgeVery Hard StocktonVery Hard SummitVery Hard SunnysideHard SyracuseHard TabionaHard TalmageSoft TeasdaleVery Hard ThompsonVery Hard TooeleVery Hard ToquervilleVery Hard TorreyEstimatedVery Hard TremontonVery Hard TrentonHard TridellVery Hard TropicVery Hard Trout CreekVery Hard VeniceSlightly Hard VernalVery Hard VernonVery Hard VeyoVery Hard VineyardHard VirginVery Hard WalesVery Hard WallsburgVery Hard WashingtonVery Hard WellingtonVery Hard WellsvilleHard West JordanHard West Valley CityHard WhiterocksVery Hard WillardVery Hard Woodland HillsHard WoodruffVery Hard Woods CrossHard