Sinkhole risk in Turner County, GA: Pockets of it

Pockets of it

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

On soluble rock: 100%
At or near the surface: 0%
Buried under cover: 100%

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 285 of Turner County's 285 square miles on soluble rock. With about 9,023 residents (32 per square mile), there is effectively nowhere in the county off the soluble rock, town or country. The figures come from 300 map points about 1.0 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why the 100% under cover still counts, and the signs to look for and how an inspection works.

Counties around Turner County

The nearest county rated sinkhole country is Crisp County, GA, about 16 miles northwest, close enough that the same rock may run under the county line. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Crisp County, GA 16 mi northwest · 50% at surface
Worth County, GA 18 mi southwest · 28% at surface
Tift County, GA 19 mi south · 5% at surface
Wilcox County, GA 20 mi northeast · 28% at surface
Irwin County, GA 22 mi east · 0% at surface
Ben Hill County, GA 27 mi east · 0% at surface

The rock underneath

The largest mapped soluble unit here is the Suwannee Limestone and its residuum (limestone), Oligocene in age, covering about 100% of the county.

Against the rest of Georgia

Turner County ranks 151 of 159 in Georgia for soluble rock at the surface, and sits above 0% of US counties on that measure.