Bismarck vs Minot Water Quality
Side-by-side water quality comparison for two North Dakota cities.
If you are comparing Bismarck and Minot water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.
Hardness comparison
Bismarck has somewhat harder water at 299 PPM versus Minot at 280 PPM, a difference of 19 PPM. At 299 PPM, Bismarck residents should budget for a water softener ($600-$1,500 installed). Without one, expect scale buildup on fixtures, reduced water heater efficiency, and $800-$1,200/year in hidden costs. Minot also has hard water but to a lesser degree.
Both cities have hard water, but Bismarck's higher hardness means more aggressive scale buildup and higher household impact.
Water sources and why they differ
Water sources differ: Bismarck draws from Missouri River, while Minot uses Souris River & wells. Both use similar source types, but local geology creates the hardness variation.
What this means for you
If you are moving from Minot to Bismarck, you will notice the water difference. Budget for a water softener and expect to use more soap and detergent until you install one.
Not sure what your specific situation needs? Take the quiz to get a recommendation based on your water data, budget, and household size.
| Metric | Bismarck | Minot |
|---|---|---|
| Hardness | 299 PPM | 280 PPM |
| GPG | 17.5 | 16.4 |
| TDS | 374 PPM | 404 PPM |
| PFAS | 0 ppt | 0 ppt |
| Lead | 2.8 ppb | 13.5 ppb |
| Chlorine | 0.8 mg/L | 1 mg/L |
| Level | Extremely Hard | Extremely Hard |