How hard is the water in Issaquena County, MS?

0.1 grains per gallon

You do not need a softener here.

The median hardness measured in Issaquena County, MS is 3 mg/L as calcium carbonate, which is 0.1 gpg. That is soft on the USGS scale. It comes from 10 samples at 7 sites between 1995 and 2018, 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 0.1 and 0.2 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 0.1 gpg the most a softener would fix is the odd water spot. If a salesperson in Issaquena 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 0.1 to 23.4 gpg

The softest single sample on record in Issaquena County was 1.4 mg/L and the hardest 400.5 mg/L, a 286-fold gap. The top quarter of sites read above 0.2 gpg and the bottom quarter below 0.1 gpg. So even in a soft county, a handful of wells here produce water hard enough to scale a heater.

Wells 0.1 gpg, rivers and lakes 5.9 gpg

10 groundwater samples from 7 wells put the median at 2.5 mg/L. 7 surface samples from 3 sites put it at 100.9 mg/L. In Issaquena County the rivers and lakes come out 5.8 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.

Issaquena County against the rest of Mississippi

Among the 78 Mississippi counties with data, Issaquena County is the softest. Across the whole country it is harder than 0% of counties.

Hardest: Franklin County at 60.5 gpg. Closest to Issaquena County: Perry County (0.2), Harrison County (0.3), Hancock County (0.4).