Water hardness in Wyoming

Typical Wyoming tap water
191mg/L
11.2gpg
Very hard

Population-weighted middle value across 13 Wyoming cities in the dataset

People with hard or very hard water
56%
Hardest
Gillette 926
Softest
Sheridan 27

We have hardness numbers for 6 Wyoming cities; 2 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 Wyoming city on the hardness scale
SoftModerately hardHardVery hard060120180240300360+Cheyenne: 49 mg/LCasper: 327 mg/LGillette: 926 mg/LRock Springs: 210 mg/LSheridan: 27 mg/LJackson: 163 mg/LCheyenneCasperGilletteRock SpringsJacksonSoftMod.HardVery hard060120180240300360+Cheyenne: 49 mg/LCasper: 327 mg/LGillette: 926 mg/LRock Springs: 210 mg/LSheridan: 27 mg/LJackson: 163 mg/LCheyenneCasperRock Springs

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

2Soft
0Moderately hard
1Hard
3Very hard

All cities in Wyoming

Citymg/LgpgClassDataEPA health violations
Cheyenne492.9SoftUtility report0
Casper32719.1Very hardUtility report0
Gillette92654.1Very hardCounty estimate0
Rock Springs21012.3Very hardCounty estimate0
Sheridan271.6SoftUtility report0
Jackson1639.5HardUtility report0

Questions

Is Wyoming water hard?

The typical Wyoming resident gets about 191 mg/L (11.2 gpg), which is very hard. About 56% of people in the cities we track have hard or very hard water.

Which city in Wyoming has the hardest water?

Among 6 cities with pages here, Gillette is highest at 926 mg/L.

Which city in Wyoming has the softest water?

Sheridan, at 27 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.