How hard is the water in Lowndes County, MS?

1.6 grains per gallon

You do not need a softener here.

The median hardness measured in Lowndes County, MS is 27 mg/L as calcium carbonate, which is 1.6 gpg. That is soft on the USGS scale. It comes from 6 samples at 6 sites between 1990 and 2025, drawn from groundwater wells, which is what most taps and private wells in the county draw on.

How much it varies here

Half the sites came in between 0.7 and 2 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: medium (how it is measured).

What to do next

You can skip the softener. At 1.6 gpg the most a softener would fix is the odd water spot. If a salesperson in Lowndes 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 2.4 gpg

The softest single sample on record in Lowndes County was 7.2 mg/L and the hardest 41.5 mg/L, a 6-fold gap. The top quarter of sites read above 2 gpg and the bottom quarter below 0.7 gpg.

Wells 1.6 gpg, rivers and lakes 2.3 gpg

6 groundwater samples from 6 wells put the median at 27.3 mg/L. 73 surface samples from 7 sites put it at 39.5 mg/L. In Lowndes 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.

Lowndes County against the rest of Mississippi

Among the 78 Mississippi counties with data, Lowndes County is number 38 of 78 counting from the hardest. Across the whole country it is harder than 13% of counties.

Softest in Mississippi: Issaquena County at 0.1 gpg. Hardest: Franklin County at 60.5 gpg. Closest to Lowndes County: Rankin County (1.5), Choctaw County (1.7), Lafayette County (1.7).