Sinkhole risk in Warren County, GA: Mostly deep or small

Mostly deep or small

Some soluble rock, mostly deeply buried or in a small share of the county.

On soluble rock: 16%
At or near the surface: 3%
Buried under cover: 13%

What this means before you buy

Sinkholes are uncommon here; watch for new depressions after heavy rain or leaking pipes.

That works out to roughly 44 of Warren County's 284 square miles on soluble rock, 8 of them with the rock at or near the surface. With about 5,148 residents (18 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 407 map points about 0.8 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why the 13% under cover still counts, and how these percentages are measured.

Counties around Warren County

The nearest county rated sinkhole country is Aiken County, SC, about 61 miles east. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

McDuffie County, GA 12 mi northeast · 22% at surface
Glascock County, GA 13 mi south · 12% at surface
Taliaferro County, GA 16 mi northwest · 0% at surface
Hancock County, GA 21 mi southwest · under 1% at surface
Wilkes County, GA 26 mi north · 0% at surface
Columbia County, GA 26 mi east · 10% at surface

The rock underneath

The largest mapped soluble unit here is the Lower Tertiary-Cretaceous undifferentiated (sand), Lower Tertiary-Cretaceous in age, covering about 16% of the county.

Against the rest of Georgia

Warren County ranks 59 of 159 in Georgia for soluble rock at the surface, and sits above 59% of US counties on that measure.