Water Hardness in 63383
Warrenton, Missouri · Warren County
Dataset updated March 9, 2026Matched to 10 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 10 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 63383
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 |
|---|---|---|---|
Warrenton Pws MO6010834 | groundwater | 521 PPM Very Hard | |
Montgomery Co Pwsd 1 MO6024406 | groundwater | 521 PPM Very Hard | |
St Charles County Pwsd 2 Warren MO6024629 | groundwater | 418 PPM Very Hard | |
Truesdale Pws MO6010799 | groundwater | 521 PPM Very Hard | |
St Charles County Pwsd 2 North Oak Dr MO6021633 | groundwater | 418 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.
Very Hard Water - Treatment Strongly Recommended
Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.
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 Warrenton, MO (63383).
Frequently Asked Questions
Is the water hard in Warrenton, MO (63383)?
The average water hardness in 63383 is 509 PPM (29.7 GPG), which is classified as very hard.
Do I need a water softener in 63383?
With hardness of 509 PPM, a water softener is recommended for homes in 63383.
Is hard water in 63383 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 63383?
Zip code 63383 in Warrenton, Missouri is served by 10 water systems.
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