Water Hardness in Manhattan, MT
Montana · 2 zip codes · 16 matched water systems
City avg (weighted): 105 PPM
Dataset updated March 9, 202616 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 16 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 Manhattan
These systems are matched to Manhattan, MT. 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 |
|---|---|---|---|
Bozeman City Of MT0000161 | surface water | 100 PPM Slightly HardUSGS estimate: 81 PPM | |
Belgrade City Of MT0000136 | groundwater | 100 PPM Slightly HardUSGS estimate: 162 PPM | |
Manhattan Town Of MT0000285 | groundwater | 227 PPM Hard | |
Wylie Creek Estates Subdivision MT0003961 | groundwater | 227 PPM Hard | |
Churchill North Subdivision MT0004431 | groundwater | 227 PPM Hard |
Zip Codes in Manhattan, MT
What This Means For You
Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Slightly Hard Water
Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | 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 Manhattan, MT.
Frequently Asked Questions
How hard is the water in Manhattan, MT?
The citywide weighted average water hardness in Manhattan, MT is 105 PPM (6.1 GPG), classified as slightly hard. This is based on 16 matched water systems. The gauge highlights Bozeman City Of, a verified treated-water system, because individual systems can differ from the citywide average.
Do I need a water softener in Manhattan, MT?
At 105 PPM, the citywide average is relatively soft. A water softener is generally not necessary.
Is hard water in Manhattan, MT 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 Manhattan, MT?
Manhattan, Montana is served by 16 matched water systems across 2 zip codes.
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