Water Hardness in 80640
Henderson, Colorado · Adams County
Dataset updated March 9, 2026Matched to 12 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 12 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 80640
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 |
|---|---|---|---|
Thornton City Of CO0101150 | surface water | 90 PPM Slightly HardUSGS estimate: 156 PPM | |
Westminster City Of CO0101170 | surface water | 90 PPM Slightly HardUSGS estimate: 158 PPM | |
South Adams County Wsd CO0101140 | surface water | 90 PPM Slightly HardUSGS estimate: 58 PPM | |
Brighton City Of CO0101025 | surface water | 90 PPM Slightly HardUSGS estimate: 165 PPM | |
Northglenn City Of CO0101115 | surface water | 90 PPM Slightly HardUSGS estimate: 158 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.
Slightly Hard Water
Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | 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 Henderson, CO (80640).
Frequently Asked Questions
Is the water hard in Henderson, CO (80640)?
The average water hardness in 80640 is 90 PPM (5.3 GPG), which is classified as slightly hard.
Do I need a water softener in 80640?
At 90 PPM, your water is relatively soft. A water softener is generally not necessary.
Is hard water in 80640 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 80640?
Zip code 80640 in Henderson, Colorado is served by 12 water systems.
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