Home › Ohio

Ohio Water Hardness

6 cities ranked by hardness.

Dayton

11.8 GPG · 202 ppm
Very Hard

Toledo

9.4 GPG · 161 ppm
Hard

Akron

8.2 GPG · 140 ppm
Hard

Cincinnati

6.6 GPG · 113 ppm
Moderate

Cleveland

6.5 GPG · 111 ppm
Moderate

Columbus

5.7 GPG · 97 ppm
Moderate