Idaho Water Hardness Map
5 cities · average 11.2 GPG
Average hardness
11.2 GPG
Hardest city
Pocatello 20.5 GPG
Softest city
Meridian 6.1 GPG
Map — Idaho cities by hardness
Very HardHardModerateSoft
Tier distribution
Very Hard2Hard1Moderate2
5 cities · average 11.2 GPG
Average hardness
Hardest city
Softest city