Water Hardness in 85365
Yuma Proving Gro, Arizona · Yuma County
Dataset updated March 9, 2026Matched to 14 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 14 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 85365
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 Yuma AZ0414024 | surface water | 200 PPM HardUSGS estimate: 363 PPM | |
San Luis City Of AZ0414005 | groundwater | 200 PPM HardUSGS estimate: 518 PPM | |
Foothills Water And Sewer Llc AZ0414004 | surface water | 200 PPM HardUSGS estimate: 413 PPM | |
Somerton City Of AZ0414015 | groundwater | 200 PPM HardUSGS estimate: 518 PPM | |
Tacna Water Improvement District AZ0414515 | groundwater | 652 PPM Very Hard |
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 Yuma Proving Gro, AZ (85365).
Frequently Asked Questions
Is the water hard in Yuma Proving Gro, AZ (85365)?
The average water hardness in 85365 is 206 PPM (12 GPG), which is classified as hard.
Do I need a water softener in 85365?
With hardness of 206 PPM, a water softener is recommended for homes in 85365.
Is hard water in 85365 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 85365?
Zip code 85365 in Yuma Proving Gro, Arizona is served by 14 water systems.
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