Water hardness in Oklahoma

Typical Oklahoma tap water
152mg/L
8.9gpg
Hard

Population-weighted middle value across 60 Oklahoma cities in the dataset

People with hard or very hard water
68%
Hardest
Mustang 463
Softest
Poteau 46

We have hardness numbers for 34 Oklahoma cities; 14 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 Oklahoma city on the hardness scale
SoftModerately hardHardVery hard060120180240300360+Oklahoma City: 157 mg/LTulsa: 110 mg/LNorman: 148 mg/LBroken Arrow: 92 mg/LEdmond: 135 mg/LLawton: 152 mg/LMoore: 94 mg/LEnid: 400 mg/LStillwater: 236 mg/LOwasso: 153 mg/LBartlesville: 88 mg/LMuskogee: 138 mg/LBixby: 92 mg/LShawnee: 140 mg/LJenks: 148 mg/LYukon: 157 mg/LArdmore: 242 mg/LMustang: 463 mg/LPonca City: 422 mg/LSapulpa: 111 mg/LDuncan: 290 mg/LDurant: 235 mg/LEl Reno: 463 mg/LClaremore: 131 mg/LSand Springs: 111 mg/LBethany: 221 mg/LNewcastle: 157 mg/LCoweta: 92 mg/LCollinsville: 153 mg/LPiedmont: 123 mg/LThe Village: 134 mg/LPoteau: 46 mg/LSkiatook: 153 mg/LCatoosa: 92 mg/LOklahoma CityTulsaLawtonMooreEnidSoftMod.HardVery hard060120180240300360+Oklahoma City: 157 mg/LTulsa: 110 mg/LNorman: 148 mg/LBroken Arrow: 92 mg/LEdmond: 135 mg/LLawton: 152 mg/LMoore: 94 mg/LEnid: 400 mg/LStillwater: 236 mg/LOwasso: 153 mg/LBartlesville: 88 mg/LMuskogee: 138 mg/LBixby: 92 mg/LShawnee: 140 mg/LJenks: 148 mg/LYukon: 157 mg/LArdmore: 242 mg/LMustang: 463 mg/LPonca City: 422 mg/LSapulpa: 111 mg/LDuncan: 290 mg/LDurant: 235 mg/LEl Reno: 463 mg/LClaremore: 131 mg/LSand Springs: 111 mg/LBethany: 221 mg/LNewcastle: 157 mg/LCoweta: 92 mg/LCollinsville: 153 mg/LPiedmont: 123 mg/LThe Village: 134 mg/LPoteau: 46 mg/LSkiatook: 153 mg/LCatoosa: 92 mg/LOklahoma CityNorman

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

1Soft
9Moderately hard
15Hard
9Very hard

Hardest water in Oklahoma

  1. Mustang463
  2. El Reno463
  3. Ponca City422
  4. Enid400
  5. Duncan290
  6. Ardmore242
  7. Stillwater236
  8. Durant235

Softest water in Oklahoma

  1. Poteau46
  2. Bartlesville88
  3. Catoosa92
  4. Coweta92
  5. Bixby92
  6. Broken Arrow92
  7. Moore94
  8. Tulsa110

All cities in Oklahoma

Citymg/LgpgClassDataEPA health violations
Oklahoma City1579.2HardUtility report0
Tulsa1106.4Moderately hardUtility report0
Norman1488.7HardUtility report1
Broken Arrow925.4Moderately hardUtility report41
Edmond1357.9HardUtility report0
Lawton1528.9HardCounty estimate0
Moore945.5Moderately hardUtility report7
Enid40023.4Very hardCounty estimate1
Stillwater23613.8Very hardCounty estimate16
Owasso1538.9HardUtility report1
Bartlesville885.2Moderately hardUtility report1
Muskogee1388.1HardCounty estimate26
Bixby925.4Moderately hardUtility report1
Shawnee1408.2HardCounty estimate7
Jenks1488.7HardCounty estimate–
Yukon1579.2HardUtility report0
Ardmore24214.2Very hardCounty estimate8
Mustang46327.1Very hardCounty estimate1
Ponca City42224.7Very hardCounty estimate–
Sapulpa1116.5Moderately hardUtility report2
Duncan29017.0Very hardCounty estimate44
Durant23513.7Very hardCounty estimate2
El Reno46327.1Very hardCounty estimate11
Claremore1317.7HardCounty estimate27
Sand Springs1116.5Moderately hardUtility report0
Bethany22112.9Very hardCounty estimate1
Newcastle1579.2HardUtility report0
Coweta925.4Moderately hardUtility report41
Collinsville1538.9HardUtility report0
Piedmont1237.2HardUtility report8
The Village1347.8HardUtility report3
Poteau462.7SoftUtility report0
Skiatook1538.9HardUtility report0
Catoosa925.4Moderately hardUtility report0

Questions

Is Oklahoma water hard?

The typical Oklahoma resident gets about 152 mg/L (8.9 gpg), which is hard. About 68% of people in the cities we track have hard or very hard water.

Which city in Oklahoma has the hardest water?

Among 34 cities with pages here, Mustang is highest at 463 mg/L.

Which city in Oklahoma has the softest water?

Poteau, at 46 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.