How hard is the water in King George County, VA?
1.9 grains per gallon
You do not need a softener here.
The median hardness measured in King George County, VA is 32 mg/L as calcium carbonate, which is 1.9 gpg. That is soft on the USGS scale. It comes from 64 samples at 64 sites between 1991 and 2026, 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 6.4 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: high (how it is measured).
What to do next
You can skip the softener. At 1.9 gpg the most a softener would fix is the odd water spot. If a salesperson in King George County says otherwise, ask to see their reading in grains per gallon and compare it with this one. Because King George 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 0.0 to 70.7 gpg
The softest single sample on record in King George County was 0.8 mg/L and the hardest 1,210 mg/L, a 1,513-fold gap. The top quarter of sites read above 6.4 gpg and the bottom quarter below 0.7 gpg. So even in a soft county, a handful of wells here produce water hard enough to scale a heater.
Wells 1.9 gpg, rivers and lakes 1.6 gpg
64 groundwater samples from 64 wells put the median at 32.3 mg/L. 466 surface samples from 19 sites put it at 27.7 mg/L. In King George County the wells come out 0.3 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.
King George County against the rest of Virginia
Among the 126 Virginia counties with data, King George County is number 73 of 126 counting from the hardest. Across the whole country it is harder than 15% of counties.
Softest in Virginia: Isle of Wight County at 0.4 gpg. Hardest: Clarke County at 20.1 gpg. Closest to King George County: Mecklenburg County (1.9), Amelia County (1.8), Prince Edward County (1.8).