How hard is the water in Warrick County, IN?
40.3 grains per gallon
A softener will pay its way here.
The median hardness measured in Warrick County, IN is 690 mg/L as calcium carbonate, which is 40.3 gpg. That is very hard on the USGS scale. It comes from 204 samples at 12 sites between 1999 and 2024, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 20.4 and 49.7 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 40.3 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 7.9 to 85.8 gpg
The softest single sample on record in Warrick County was 136 mg/L and the hardest 1,469 mg/L, an 11-fold gap. The top quarter of sites read above 49.7 gpg and the bottom quarter below 20.4 gpg.
Wells 13.8 gpg, rivers and lakes 41.7 gpg
1 groundwater samples from 1 wells put the median at 237 mg/L. 203 surface samples from 11 sites put it at 714 mg/L. In Warrick County the rivers and lakes come out 27.9 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. A utility here that draws from the aquifer can deliver noticeably different water from a private well next door.
What a softener would cost to run
For a household of 3, a 64,000-grain unit covers a week between regenerations. Expect about 880 lb of salt a year (23 bags of 40 lb, about $158), 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 $258 a year.
Sizing at 40.3 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 2,418 | 24,000 | 294 lb |
| 2 | 4,836 | 40,000 | 588 lb |
| 4 | 9,672 | 80,000 | 1,177 lb |
| 6 | 14,508 | twin tank | 1,765 lb |
Warrick County against the rest of Indiana
Among the 91 Indiana counties with data, Warrick County is the hardest. Across the whole country it is harder than 97% of counties.
Softest in Indiana: Brown County at 3.8 gpg. Closest to Warrick County: Delaware County (23.9), Jay County (24), Fulton County (23.8).