Austin, TX water hardness

Austin's tap water measures 93 ppm, which is moderately hard. The number comes from Austin Water's 2025 published data, measured at the tap.

Score

93 ppm

Moderately hard

Austin shower water

Hardness bands per the U.S. Geological Survey. Range: 70 to 126 ppm across service areas.

Soft
0–60

Moderately hard
61–120

Hard
121–180

Very hard
181+

Source: Austin Water, 2025.

Elsewhere in Texas, San Antonio tests at 299 ppm and El Paso at 175 ppm.

What this means

What Austin 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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