How hard is the water in Pipestone County, MN?
24.3 grains per gallon
A softener will pay its way here.
The median hardness measured in Pipestone County, MN is 415 mg/L as calcium carbonate, which is 24.3 gpg. That is very hard on the USGS scale. It comes from 137 samples at 22 sites between 1991 and 2023, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 23.4 and 25.1 gpg. The whole middle of that range gives the same answer, so a test of your own tap is unlikely to change it. Confidence in the county figure: high (how it is measured).
What to do next
At 24.3 gpg a softener pays its way here. Before you buy, check the quoted unit's grain capacity against the sizing table below, and ask whether it regenerates on demand, which uses less salt than a timer. Call your utility for its own report if you are on city water.
More on sizing a softener for your household.
From 8.8 to 27.4 gpg
The softest single sample on record in Pipestone County was 151 mg/L and the hardest 469 mg/L, a 3-fold gap. The top quarter of sites read above 25.1 gpg and the bottom quarter below 23.4 gpg.
What a softener would cost to run
For a household of 3, a 32,000-grain unit covers a week between regenerations. Expect about 530 lb of salt a year (14 bags of 40 lb, about $95), and roughly 2,346 gallons of regeneration water. Installed, most units run $1,000 to $4,500; spread over 15 years with salt, that is about $195 a year.
Sizing at 24.3 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 1,458 | 24,000 | 177 lb |
| 2 | 2,916 | 24,000 | 355 lb |
| 4 | 5,832 | 48,000 | 710 lb |
| 6 | 8,748 | 64,000 | 1,064 lb |
Pipestone County against the rest of Minnesota
Among the 87 Minnesota counties with data, Pipestone County is number 13 of 87 counting from the hardest. Across the whole country it is harder than 91% of counties.
Softest in Minnesota: Lake County at 1.3 gpg. Hardest: Traverse County at 42.6 gpg. Closest to Pipestone County: Redwood County (24.4), Hennepin County (23.6), Grant County (23.4).