Water Hardness in 78620
Dripping Springs, Texas · Hays County
Dataset updated March 9, 2026Matched to 21 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 21 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.
Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.
Water Systems Serving 78620
These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| City Of San Marcos TX1050001 | surface water | 150 PPM Moderately HardUSGS estimate: 208 PPM | |
| City Of Kyle TX1050002 | surface water | 150 PPM Moderately HardUSGS estimate: 262 PPM | |
| Texas State University - San Marcos TX1050003 | groundwater | 150 PPM Moderately HardUSGS estimate: 320 PPM | |
| Goforth Sud TX1050019 | surface water | 150 PPM Moderately HardUSGS estimate: 262 PPM | |
| County Line Sud TX1050038 | surface water | 150 PPM Moderately HardUSGS estimate: 262 PPM |
Nearby Zip Codes
What This Means For You
Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.
Know your water hardness?
If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Dripping Springs, TX (78620).
Frequently Asked Questions
Is the water hard in Dripping Springs, TX (78620)?
The average water hardness in 78620 is 160 PPM (9.3 GPG), which is classified as moderately hard.
Do I need a water softener in 78620?
With hardness of 160 PPM, a water softener is worth considering for homes in 78620.
Is hard water in 78620 safe to drink?
Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.
How many water systems serve 78620?
Zip code 78620 in Dripping Springs, Texas is served by 21 water systems.
Learn More About Your Water
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