How hard is the water in Calhoun County, FL?

3.5 grains per gallon

You do not need a softener here.

The median hardness measured in Calhoun County, FL is 59 mg/L as calcium carbonate, which is 3.5 gpg. That is soft on the USGS scale. It comes from 98 samples at 13 sites between 1990 and 2017, drawn from every sampling site in the county, wells and surface water together.

How much it varies here

Half the sites came in between 0.7 and 5.5 gpg. That spread crosses a decision line, so some homes here land on a different answer. A $10 test strip on your own tap settles it. Confidence in the county figure: high (how it is measured).

What to do next

You can skip the softener. At 3.5 gpg the most a softener would fix is the odd water spot. If a salesperson in Calhoun County says otherwise, ask to see their reading in grains per gallon and compare it with this one. Because Calhoun County straddles a decision line, check your own tap with a $10 test strip before you spend anything.

More on when a softener is not worth it.

From 0.2 to 6.5 gpg

The softest single sample on record in Calhoun County was 2.8 mg/L and the hardest 112 mg/L, a 40-fold gap. The top quarter of sites read above 5.5 gpg and the bottom quarter below 0.7 gpg.

Calhoun County against the rest of Florida

Among the 67 Florida counties with data, Calhoun County is number 53 of 67 counting from the hardest. Across the whole country it is harder than 24% of counties.

Softest in Florida: Washington County at 0.3 gpg. Hardest: Sarasota County at 32.2 gpg. Closest to Calhoun County: Gulf County (3), Franklin County (2.4), Highlands County (4.5).