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Michigan Water Hardness

Across the 9 cities we track in Michigan, hardness ranges from 5.73–8.33 GPG, with 3 cities running hard or very hard, and 2 more cities don't publish a figure.

9 cities tracked. View the Michigan hardness map → · Is Michigan water safe to drink? →

Grand Rapids

8.33 GPG · 142.5 ppm
Hard

Ann Arbor

7.4 GPG · 126 ppm
Hard

Troy

7.31 GPG · 125 ppm
Hard

Southfield

6.78 GPG · 116 ppm
Moderate

Warren

6.61 GPG · 113 ppm
Moderate

Detroit

6.26 GPG · 107 ppm
Moderate

Livonia

6.2 GPG · 106 ppm
Moderate

Dearborn

5.94 GPG · 101.5 ppm
Moderate

Lansing

5.73 GPG · 98 ppm
Moderate

Cities with no published figure

These Michigan cities don't publish a hardness number (it isn't a regulated parameter), so they can't be ranked — but we still track them. See each page for how to check your own tap.

Flint

Hardness not published
Not Published

Sterling Heights

Hardness not published
Not Published