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Water hardness

Nashville, TN water hardness

Nashville's tap water measures 80 ppm, which is moderately hard. The number comes from Metro Water Services's 2023 published data, measured at the tap.

Score

80 ppm

Moderately hard

Nashville shower water

Hardness bands per the U.S. Geological Survey. Range: 67 to 103 ppm across service areas.

80
Soft
0–60
Moderately hard
61–120
Hard
121–180
Very hard
181+

Source: Metro Water Services, 2023.

Elsewhere in Tennessee, Memphis tests at 48 ppm.

What this means

What Nashville Water Means for Hair and Skin

Between 61 and 120 ppm, effects are mild and many people never notice them. If your fixtures stay clean and soap behaves, this level is not worth treating.

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