Water Hardness in 75491
Whitewright, Texas · Grayson County
Dataset updated March 9, 2026Matched to 10 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 10 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 75491
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 Sherman TX0910006 | surface water | 145 PPM Moderately Hard | |
City Of Denison TX0910003 | surface water | 358 PPM Very Hard | |
City Of Howe TX0910013 | surface water | 145 PPM Moderately Hard | |
Tanglewood On Texoma TX0910052 | surface water | 145 PPM Moderately Hard | |
Kentuckytown Wsc TX0910060 | groundwater | 5 PPM Soft |
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 Whitewright, TX (75491).
Frequently Asked Questions
Is the water hard in Whitewright, TX (75491)?
The average water hardness in 75491 is 199 PPM (11.7 GPG), which is classified as hard.
Do I need a water softener in 75491?
With hardness of 199 PPM, a water softener is recommended for homes in 75491.
Is hard water in 75491 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 75491?
Zip code 75491 in Whitewright, Texas is served by 10 water systems.
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