Water Hardness in 75228
Dallas, Texas · Dallas County
Dataset updated March 9, 2026Matched to 20 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 20 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 75228
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 |
|---|---|---|---|
| Dallas Water Utility TX0570004 | surface water | 150 PPM Moderately HardUSGS estimate: 171 PPM | |
| City Of Irving TX0570050 | surface water | 150 PPM Moderately HardUSGS estimate: 131 PPM | |
| City Of Garland TX0570010 | surface water | 150 PPM Moderately HardUSGS estimate: 171 PPM | |
| City Of Grand Prairie TX0570048 | surface water | 150 PPM Moderately HardUSGS estimate: 171 PPM | |
| City Of Mesquite TX0570014 | surface water | 150 PPM Moderately HardUSGS estimate: 171 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 Dallas, TX (75228).
Frequently Asked Questions
Is the water hard in Dallas, TX (75228)?
The average water hardness in 75228 is 150 PPM (8.8 GPG), which is classified as moderately hard.
Do I need a water softener in 75228?
With hardness of 150 PPM, a water softener is worth considering for homes in 75228.
Is hard water in 75228 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 75228?
Zip code 75228 in Dallas, Texas is served by 20 water systems.
Learn More About Your Water
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