How hard is the water in Yadkin County, NC?
2.9 grains per gallon
You do not need a softener here.
The median hardness measured in Yadkin County, NC is 49 mg/L as calcium carbonate, which is 2.9 gpg. That is soft on the USGS scale. It comes from 42 samples at 4 sites between 1990 and 2014, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 2.2 and 3.8 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
You can skip the softener. At 2.9 gpg the most a softener would fix is the odd water spot. If a salesperson in Yadkin County says otherwise, ask to see their reading in grains per gallon and compare it with this one. Because Yadkin 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 1.1 to 5.6 gpg
The softest single sample on record in Yadkin County was 18 mg/L and the hardest 96.1 mg/L, a 5-fold gap. The top quarter of sites read above 3.8 gpg and the bottom quarter below 2.2 gpg.
Wells 3.2 gpg, rivers and lakes 1.1 gpg
3 groundwater samples from 3 wells put the median at 55.1 mg/L. 39 surface samples from 1 sites put it at 18 mg/L. In Yadkin County the wells come out 2.1 gpg harder. Groundwater sits in contact with rock for years and picks up calcium and magnesium as it goes, so wells usually read harder. The two sources are close, so the county figure should hold whichever one your tap is on.
Yadkin County against the rest of North Carolina
Among the 99 North Carolina counties with data, Yadkin County is number 33 of 99 counting from the hardest. Across the whole country it is harder than 21% of counties.
Softest in North Carolina: Bertie County at 0.3 gpg. Hardest: Dare County at 63.7 gpg. Closest to Yadkin County: Ashe County (3), Union County (2.7), Davidson County (2.6).