Water Hardness in 64801
Joplin, Missouri · Jasper County
Dataset updated March 9, 2026Matched to 25 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 25 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 64801
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 |
|---|---|---|---|
Mo American Joplin MO5010413 | surface water | 191 PPM Hard | |
Carthage Pws MO5010142 | groundwater | 210 PPM Hard | |
Webb City Pws MO5010844 | surface water | 160 PPM Moderately Hard | |
Mo American Tri State MO5024601 | groundwater | 143 PPM Moderately Hard | |
Mo American Stonebridge Village MO5031086 | groundwater | 143 PPM Moderately 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 Joplin, MO (64801).
Frequently Asked Questions
Is the water hard in Joplin, MO (64801)?
The average water hardness in 64801 is 182 PPM (10.7 GPG), which is classified as hard.
Do I need a water softener in 64801?
With hardness of 182 PPM, a water softener is recommended for homes in 64801.
Is hard water in 64801 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 64801?
Zip code 64801 in Joplin, Missouri is served by 25 water systems.
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