How hard is the water in Yazoo County, MS?
13.8 grains per gallon
A softener will pay its way here.
The median hardness measured in Yazoo County, MS is 236 mg/L as calcium carbonate, which is 13.8 gpg. That is very hard on the USGS scale. It comes from 6 samples at 5 sites between 1990 and 2019, 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 0.3 and 18.8 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: medium (how it is measured).
What to do next
At 13.8 gpg a softener pays its way here. Before you buy, check the quoted unit's grain capacity against the sizing table below, and ask whether it regenerates on demand, which uses less salt than a timer. Call your utility for its own report if you are on city water. Because Yazoo County straddles a decision line, check your own tap with a $10 test strip before you spend anything.
More on sizing a softener for your household.
From 0.1 to 26.4 gpg
The softest single sample on record in Yazoo County was 2.2 mg/L and the hardest 452 mg/L, a 205-fold gap. The top quarter of sites read above 18.8 gpg and the bottom quarter below 0.3 gpg. So even here some sites draw water soft enough to need nothing at all.
Wells 13.8 gpg, rivers and lakes 5.4 gpg
6 groundwater samples from 5 wells put the median at 236 mg/L. 13 surface samples from 2 sites put it at 91.8 mg/L. In Yazoo County the wells come out 8.4 gpg harder. Groundwater sits in contact with rock for years and picks up calcium and magnesium as it goes, so wells usually read harder. A utility here that draws from the river can deliver noticeably different water from a private well next door.
What a softener would cost to run
For a household of 3, a 24,000-grain unit covers a week between regenerations. Expect about 301 lb of salt a year (8 bags of 40 lb, about $54), and roughly 2,346 gallons of regeneration water. Installed, most units run $1,000 to $4,500; spread over 15 years with salt, that is about $154 a year.
Sizing at 13.8 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 828 | 24,000 | 101 lb |
| 2 | 1,656 | 24,000 | 201 lb |
| 4 | 3,312 | 24,000 | 403 lb |
| 6 | 4,968 | 40,000 | 604 lb |
Yazoo County against the rest of Mississippi
Among the 78 Mississippi counties with data, Yazoo County is number 6 of 78 counting from the hardest. Across the whole country it is harder than 65% of counties.
Softest in Mississippi: Issaquena County at 0.1 gpg. Hardest: Franklin County at 60.5 gpg. Closest to Yazoo County: Leflore County (13), Coahoma County (16), Sunflower County (17.2).