Water Hardness in 35810
Huntsville, Alabama · Madison County
Dataset updated March 9, 2026Matched to 6 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 6 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 35810
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 |
|---|---|---|---|
| Huntsville Utilities AL0000882 | surface water | 80 PPM Slightly HardUSGS estimate: 129 PPM | |
| Madison County Water Department AL0000888 | surface water | 80 PPM Slightly HardUSGS estimate: 22 PPM | |
| Madison, The W & Ww Board Of The City Of AL0000885 | surface water | 80 PPM Slightly HardUSGS estimate: 129 PPM | |
| Harvest-Monrovia Water System AL0000878 | surface water | 80 PPM Slightly HardUSGS estimate: 182 PPM | |
| Us Army Garrison-Redstone Arsenal AL0000899 | surface water | 80 PPM Slightly HardUSGS estimate: 129 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 Huntsville, AL (35810).
Frequently Asked Questions
Is the water hard in Huntsville, AL (35810)?
The average water hardness in 35810 is 80 PPM (4.7 GPG), which is classified as slightly hard.
Do I need a water softener in 35810?
At 80 PPM, your water is relatively soft. A water softener is generally not necessary.
Is hard water in 35810 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 35810?
Zip code 35810 in Huntsville, Alabama is served by 6 water systems.
Learn More About Your Water
How to Test Water Hardness at Home
Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.
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