Water Hardness in Cape Girardeau, MO
Missouri · 2 zip codes · 14 matched water systems
Dataset updated March 9, 202614 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
How this city reading is built
This city reading is a weighted rollup across 14 matched water systems and 2 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.
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 in Cape Girardeau
These systems are matched to Cape Girardeau, MO. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
Cape Girardeau Pws MO4010136 | groundwater | 249 PPM Hard | |
Jackson Pws MO4010404 | groundwater | 292 PPM Very Hard | |
Cape Girardeau County Pwsd 2 MO4024097 | groundwater | 292 PPM Very Hard | |
Cape Girardeau County Pwsd 4 MO4024100 | groundwater | 249 PPM Hard | |
Cape Girardeau County Pwsd 5 MO4021532 | groundwater | 249 PPM Hard |
Zip Codes in Cape Girardeau, MO
What This Means For You
Recommendations are based on the displayed 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 Cape Girardeau, MO.
Frequently Asked Questions
How hard is the water in Cape Girardeau, MO?
The citywide weighted average water hardness in Cape Girardeau, MO is 262 PPM (15.3 GPG), classified as very hard. This is based on 14 matched water systems.
Do I need a water softener in Cape Girardeau, MO?
With a citywide average hardness of 262 PPM, a water softener is recommended for homes in Cape Girardeau. Confirm your tap reading before sizing equipment.
Is hard water in Cape Girardeau, MO 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 Cape Girardeau, MO?
Cape Girardeau, Missouri is served by 14 matched water systems across 2 zip codes.
Learn More About Your Water
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