How hard is the water in Stewart County, GA?

1 grains per gallon

You do not need a softener here.

The median hardness measured in Stewart County, GA is 17 mg/L as calcium carbonate, which is 1 gpg. That is soft on the USGS scale. It comes from 683 samples at 18 sites between 1992 and 2026, 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 1.3 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 1 gpg the most a softener would fix is the odd water spot. If a salesperson in Stewart 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 0.4 to 3.2 gpg

The softest single sample on record in Stewart County was 6.3 mg/L and the hardest 55.2 mg/L, a 9-fold gap. The top quarter of sites read above 1.3 gpg and the bottom quarter below 0.7 gpg.

Wells 0.4 gpg, rivers and lakes 1.1 gpg

2 groundwater samples from 2 wells put the median at 6.8 mg/L. 681 surface samples from 16 sites put it at 19.5 mg/L. In Stewart County the rivers and lakes come out 0.7 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. The two sources are close, so the county figure should hold whichever one your tap is on.

Stewart County against the rest of Georgia

Among the 159 Georgia counties with data, Stewart County is number 119 of 159 counting from the hardest. Across the whole country it is harder than 7% of counties.

Softest in Georgia: Richmond County at 0.2 gpg. Hardest: Glynn County at 13.6 gpg. Closest to Stewart County: Tattnall County (1), Telfair County (1), Crawford County (0.9).