Helena vs Missoula Water Quality
Side-by-side water quality comparison for two Montana cities.
If you are comparing Helena and Missoula water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Helena has dramatically harder water at 160 PPM versus Missoula at 16 PPM, a difference of 144 PPM. At 160 PPM, Helena residents will notice spotting and reduced soap efficiency. A softener is recommended for long-term appliance protection. Missoula residents generally do not need any water softening equipment.
This difference has real practical impact. Helena homeowners deal with scale buildup on water heaters, extra soap and detergent use, and shorter appliance lifespans that Missoula residents largely avoid.
Water sources and why they differ
Water sources differ: Helena draws from Missouri River + Ten Mile Creek, while Missoula uses Rattlesnake Creek, groundwater. The mix of groundwater and surface water explains much of the hardness difference.
What this means for you
If you are moving from Missoula to Helena, you will notice the water difference. Budget for a water softener and expect to use more soap and detergent until you install one. If moving the other direction, from Helena to Missoula, you may be pleasantly surprised by how much better soap lathers and how your skin feels.
Not sure what your specific situation needs? Take the quiz to get a recommendation based on your water data, budget, and household size.
| Metric | Helena | Missoula |
|---|---|---|
| Hardness | 160 PPM | 16 PPM |
| GPG | 9.4 | 0.9 |
| TDS | 230 PPM | 48 PPM |
| PFAS | 0 ppt | 0 ppt |
| Lead | 3 ppb | 22 ppb |
| Chlorine | 0.6 mg/L | 0.6 mg/L |
| Level | Hard | Soft |