Water Hardness in 86025
Holbrook, Arizona · Navajo County
Dataset updated March 9, 2026Matched to 8 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 8 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 86025
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 Show Low AZ0409026 | groundwater | 183 PPM Hard | |
Arizona Water Co - Overgaard AZ0409004 | groundwater | 326 PPM Very Hard | |
Arizona Water Co - Lakeside AZ0409003 | groundwater | 326 PPM Very Hard | |
Holbrook City Of AZ0409015 | groundwater | 105 PPM Slightly Hard | |
Petrified Forest Np AZ0401704 | groundwater | 91 PPM Slightly 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 Holbrook, AZ (86025).
Frequently Asked Questions
Is the water hard in Holbrook, AZ (86025)?
The average water hardness in 86025 is 243 PPM (14.2 GPG), which is classified as hard.
Do I need a water softener in 86025?
With hardness of 243 PPM, a water softener is recommended for homes in 86025.
Is hard water in 86025 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 86025?
Zip code 86025 in Holbrook, Arizona is served by 8 water systems.
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