Water Hardness in 59847
Lolo, Montana · Missoula County
Dataset updated March 9, 2026Matched to 6 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 6 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 59847
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 |
|---|---|---|---|
| Missoula Water MT0000294 | groundwater | 176 PPM Moderately HardUSGS estimate: 108 PPM | |
| Lolo Water And Sewer Dist MT0000278 | groundwater | 217 PPM Hard | |
| Bitterroot Gateway Mb Pk Lolo MT0000443 | groundwater | 217 PPM Hard | |
| Bitterroot Meadows Hoa Lolo MT0003146 | groundwater | 217 PPM Hard | |
| Valley West Trailer Court MT0000444 | groundwater | 217 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 Lolo, MT (59847).
Frequently Asked Questions
Is the water hard in Lolo, MT (59847)?
The average water hardness in 59847 is 178 PPM (10.4 GPG), which is classified as moderately hard.
Do I need a water softener in 59847?
With hardness of 178 PPM, a water softener is worth considering for homes in 59847.
Is hard water in 59847 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 59847?
Zip code 59847 in Lolo, Montana is served by 6 water systems.
Learn More About Your Water
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