How hard is the water in Randolph County, AL?
0.7 grains per gallon
You do not need a softener here.
The median hardness measured in Randolph County, AL is 11 mg/L as calcium carbonate, which is 0.7 gpg. That is soft on the USGS scale. It comes from 526 samples at 32 sites between 1992 and 2025, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 0.5 and 0.7 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
You can skip the softener. At 0.7 gpg the most a softener would fix is the odd water spot. If a salesperson in Randolph County says otherwise, ask to see their reading in grains per gallon and compare it with this one.
More on when a softener is not worth it.
From 0.3 to 1.2 gpg
The softest single sample on record in Randolph County was 4.3 mg/L and the hardest 20.2 mg/L, a 5-fold gap. The top quarter of sites read above 0.7 gpg and the bottom quarter below 0.5 gpg.
Randolph County against the rest of Alabama
Among the 67 Alabama counties with data, Randolph County is number 61 of 67 counting from the hardest. Across the whole country it is harder than 3% of counties.
Softest in Alabama: Washington County at 0.2 gpg. Hardest: Walker County at 13.1 gpg. Closest to Randolph County: Hale County (0.6), Autauga County (0.6), Clay County (0.7).