Water Hardness in 59634
Montana City, Montana · Jefferson County
Dataset updated March 9, 2026Matched to 9 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 9 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 59634
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 |
|---|---|---|---|
| Saddle Mountain Corp Clancy MT0000057 | groundwater | 195 PPM Hard | |
| Forest Park Water Users Association MT0000591 | groundwater | 195 PPM Hard | |
| Blue Sky Heights Wua Clancy MT0000030 | groundwater | 195 PPM Hard | |
| Hangmans Tree Wua MT0000128 | groundwater | 195 PPM Hard | |
| Stoney Brook Village Condominium Assoc MT0004257 | groundwater | 195 PPM Hard |
Nearby Zip Codes
What This Means For You
Use this ZIP 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 Montana City, MT (59634).
Frequently Asked Questions
Is the water hard in Montana City, MT (59634)?
The average water hardness in 59634 is 195 PPM (11.4 GPG), which is classified as hard.
Do I need a water softener in 59634?
With hardness of 195 PPM, a water softener is recommended for homes in 59634.
Is hard water in 59634 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 59634?
Zip code 59634 in Montana City, Montana is served by 9 water systems.
Learn More About Your Water
How to Test Water Hardness at Home
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