Sinkhole risk in Jasper County, SC: Pockets of it

Pockets of it

Soluble rock at the surface or under thin cover in part of the county.

On soluble rock: 82%
At or near the surface: 21%
Buried under cover: 61%

The next step for one property

Check the parcel against your state survey sinkhole map, and ask for an inspection if cracks, depressions or sticking doors show up.

That works out to roughly 539 of Jasper County's 655 square miles on soluble rock, 139 of them with the rock at or near the surface. With about 35,618 residents (54 per square mile), much of the land is open, and the mapped rock may sit far from where people actually live. The figures come from 513 map points about 1.1 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Jasper County

The nearest county rated sinkhole country is Hampton County, SC, about 25 miles north, close enough that the same rock may run under the county line. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Effingham County, GA 19 mi west · 18% at surface
Beaufort County, SC 20 mi east · 0% at surface
Hampton County, SC 25 mi north · 70% at surface
Chatham County, GA 31 mi south · 0% at surface
Colleton County, SC 36 mi northeast · 48% at surface
Bryan County, GA 38 mi southwest · under 1% at surface

Against the rest of South Carolina

Jasper County ranks 25 of 46 in South Carolina for soluble rock at the surface, and sits above 75% of US counties on that measure.