Water hardness in Arizona

Typical Arizona tap water
180mg/L
10.5gpg
Hard

Population-weighted middle value across 57 Arizona cities in the dataset

People with hard or very hard water
92%
Hardest
Yuma 383
Softest
Sun City 75

We have hardness numbers for 42 Arizona cities; 10 of them are county estimates rather than utility figures. Each city page adds the water system's EPA violation record and a softener size for a typical household.

Every Arizona city on the hardness scale
SoftModerately hardHardVery hard060120180240300360+Phoenix: 237 mg/LTucson: 180 mg/LGilbert: 168 mg/LChandler: 139 mg/LGlendale: 168 mg/LScottsdale: 172 mg/LTempe: 180 mg/LGoodyear: 154 mg/LSan Tan Valley: 109 mg/LYuma: 383 mg/LAvondale: 105 mg/LQueen Creek: 178 mg/LMaricopa: 220 mg/LFlagstaff: 161 mg/LCasas Adobes: 180 mg/LCasa Grande: 220 mg/LLake Havasu City: 284 mg/LPrescott Valley: 109 mg/LCatalina Foothills: 180 mg/LPrescott: 104 mg/LSierra Vista: 170 mg/LBullhead City: 284 mg/LSan Luis: 383 mg/LSun City: 75 mg/LKingman: 284 mg/LEl Mirage: 208 mg/LFortuna Foothills: 160 mg/LDrexel Heights: 180 mg/LFlorence: 109 mg/LRio Rico: 220 mg/LEloy: 343 mg/LFlowing Wells: 180 mg/LVail: 158 mg/LTanque Verde: 180 mg/LSun Lakes: 103 mg/LValencia West: 180 mg/LCottonwood: 179 mg/LTucson Estates: 180 mg/LParadise Valley: 171 mg/LTucson Mountains: 180 mg/LYoungtown: 75 mg/LGuadalupe: 172 mg/LPhoenixTucsonChandlerGlendaleSoftMod.HardVery hard060120180240300360+Phoenix: 237 mg/LTucson: 180 mg/LGilbert: 168 mg/LChandler: 139 mg/LGlendale: 168 mg/LScottsdale: 172 mg/LTempe: 180 mg/LGoodyear: 154 mg/LSan Tan Valley: 109 mg/LYuma: 383 mg/LAvondale: 105 mg/LQueen Creek: 178 mg/LMaricopa: 220 mg/LFlagstaff: 161 mg/LCasas Adobes: 180 mg/LCasa Grande: 220 mg/LLake Havasu City: 284 mg/LPrescott Valley: 109 mg/LCatalina Foothills: 180 mg/LPrescott: 104 mg/LSierra Vista: 170 mg/LBullhead City: 284 mg/LSan Luis: 383 mg/LSun City: 75 mg/LKingman: 284 mg/LEl Mirage: 208 mg/LFortuna Foothills: 160 mg/LDrexel Heights: 180 mg/LFlorence: 109 mg/LRio Rico: 220 mg/LEloy: 343 mg/LFlowing Wells: 180 mg/LVail: 158 mg/LTanque Verde: 180 mg/LSun Lakes: 103 mg/LValencia West: 180 mg/LCottonwood: 179 mg/LTucson Estates: 180 mg/LParadise Valley: 171 mg/LTucson Mountains: 180 mg/LYoungtown: 75 mg/LGuadalupe: 172 mg/LPhoenixTucsonGilbert

Dot size follows population. Tap a dot for the city page.

0Soft
8Moderately hard
23Hard
11Very hard

Hardest water in Arizona

  1. Yuma383
  2. San Luis383
  3. Eloy343
  4. Lake Havasu City284
  5. Bullhead City284
  6. Kingman284
  7. Phoenix237
  8. Maricopa220

Softest water in Arizona

  1. Youngtown75
  2. Sun City75
  3. Sun Lakes103
  4. Prescott104
  5. Avondale105
  6. Florence109
  7. Prescott Valley109
  8. San Tan Valley109

All cities in Arizona

Citymg/LgpgClassDataEPA health violations
Phoenix23713.9Very hardUtility report1
Tucson18010.5HardUtility report0
Gilbert1689.8HardUtility report3
Chandler1398.1HardUtility report1
Glendale1689.8HardUtility report0
Scottsdale17210.1HardUtility report0
Tempe18010.5HardUtility report2
Goodyear1549.0HardUtility report1
San Tan Valley1096.4Moderately hardUtility report2
Yuma38322.4Very hardCounty estimate23
Avondale1056.1Moderately hardUtility report0
Queen Creek17810.4HardUtility report0
Maricopa22012.9Very hardCounty estimate1
Flagstaff1619.4HardUtility report0
Casas Adobes18010.5HardUtility report0
Casa Grande22012.9Very hardCounty estimate0
Lake Havasu City28416.6Very hardCounty estimate0
Prescott Valley1096.4Moderately hardUtility report0
Catalina Foothills18010.5HardUtility report0
Prescott1046.1Moderately hardUtility report1
Sierra Vista1709.9HardCounty estimate0
Bullhead City28416.6Very hardCounty estimate2
San Luis38322.4Very hardCounty estimate4
Sun City754.4Moderately hardUtility report0
Kingman28416.6Very hardCounty estimate0
El Mirage20812.2Very hardCounty estimate0
Fortuna Foothills1609.4HardUtility report2
Drexel Heights18010.5HardUtility report0
Florence1096.4Moderately hardUtility report1
Rio Rico22012.9Very hardCounty estimate0
Eloy34320.1Very hardUtility report3
Flowing Wells18010.5HardUtility report0
Vail1589.2HardUtility report0
Tanque Verde18010.5HardUtility report0
Sun Lakes1036.0Moderately hardUtility report2
Valencia West18010.5HardUtility report0
Cottonwood17910.5HardUtility report4
Tucson Estates18010.5HardUtility report0
Paradise Valley17110.0HardUtility report0
Tucson Mountains18010.5HardUtility report0
Youngtown754.4Moderately hardUtility report0
Guadalupe17210.1HardUtility report1

Questions

Is Arizona water hard?

The typical Arizona resident gets about 180 mg/L (10.5 gpg), which is hard. About 92% of people in the cities we track have hard or very hard water.

Which city in Arizona has the hardest water?

Among 42 cities with pages here, Yuma is highest at 383 mg/L.

Which city in Arizona has the softest water?

Sun City, at 75 mg/L.

Other states

Hardness data: TapWaterData US Water Hardness, CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.