Water Hardness in 77581
Pearland, Texas · Brazoria County
Dataset updated March 9, 2026Matched to 13 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 13 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 77581
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 Pearland TX0200008 | surface water | 180 PPM HardUSGS estimate: 79 PPM | |
City Of Angleton TX0200002 | surface water | 180 PPM HardUSGS estimate: 181 PPM | |
City Of Lake Jackson TX0200006 | surface water | 180 PPM HardUSGS estimate: 178 PPM | |
City Of Alvin TX0200001 | groundwater | 180 PPM HardUSGS estimate: 79 PPM | |
City Of Clute TX0200004 | surface water | 180 PPM HardUSGS estimate: 178 PPM |
Nearby Zip Codes
What This Means For You
Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Hard Water - Treatment Recommended
Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water
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 Pearland, TX (77581).
Frequently Asked Questions
Is the water hard in Pearland, TX (77581)?
The average water hardness in 77581 is 180 PPM (10.5 GPG), which is classified as hard.
Do I need a water softener in 77581?
With hardness of 180 PPM, a water softener is recommended for homes in 77581.
Is hard water in 77581 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 77581?
Zip code 77581 in Pearland, Texas is served by 13 water systems.
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