Home › Missouri › Hardness map

Missouri Water Hardness Map

5 cities · average 8.2 GPG

Average hardness

8.2 GPG

Hardest city

Columbia 10.9 GPG

Softest city

Lee's Summit 7.19 GPG

Map — Missouri cities by hardness

Very HardHardModerateSoft

Tier distribution

Very Hard1Hard4

Cities ranked by hardness

1Columbia10.9 GPGVery Hard2Springfield8.1 GPGHard3St Louis7.5 GPGHard4Independence7.2 GPGHard5Lee's Summit7.19 GPGHard