Water Hardness in Madisonville, OH
Ohio · 1 zip codes · 4 matched water systems
City avg (weighted): 140 PPM
Dataset updated March 9, 20264 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Madisonville, OH Water Hard or Soft?
The displayed hardness for Madisonville, OH is 140 PPM (8.2 GPG) from Cincinnati Public Water System, classified as moderately hard. The citywide weighted average is 140 PPM.
Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.
How this city reading is built
This city reading is a weighted rollup across 4 matched water systems and 1 ZIP code. 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 Madisonville
These systems are matched to Madisonville, OH. 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 |
|---|---|---|---|
| Cincinnati Public Water System OH3102612 | surface water | 140 PPM Moderately HardUSGS estimate: 370 PPM | |
| Norwood City Pws OH3101703 | surface water | 140 PPM Moderately HardUSGS estimate: 414 PPM | |
| Indian Hill City Pws OH3101112 | groundwater | 140 PPM Moderately HardUSGS estimate: 317 PPM | |
| Harrison City Pws OH3100812 | groundwater | 140 PPM Moderately HardUSGS estimate: 284 PPM |
Zip Codes in Madisonville, OH
What This Means For You
Use this city reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.
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 Madisonville, OH.
Frequently Asked Questions
How hard is the water in Madisonville, OH?
The citywide weighted average water hardness in Madisonville, OH is 140 PPM (8.2 GPG), classified as moderately hard. This is based on 4 matched water systems.
Do I need a water softener in Madisonville, OH?
With a citywide average hardness of 140 PPM, a water softener is worth considering for homes in Madisonville. Confirm your tap reading before sizing equipment.
Is hard water in Madisonville, OH 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 Madisonville, OH?
Madisonville, Ohio is served by 4 matched water systems across 1 zip code.
Learn More About Your Water
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