Sinkhole risk in Montgomery 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%

What to do about a house in Montgomery County

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 241 of Montgomery County's 241 square miles on soluble rock. With about 8,566 residents (36 per square mile), there is effectively nowhere in the county off the soluble rock, town or country. The figures come from 240 map points about 1.0 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Montgomery County

The nearest county rated sinkhole country is Pulaski County, GA, about 56 miles west. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Toombs County, GA 12 mi east · 0% at surface
Wheeler County, GA 13 mi west · 0% at surface
Treutlen County, GA 17 mi north · 0% at surface
Jeff Davis County, GA 26 mi south · 0% at surface
Laurens County, GA 28 mi northwest · 8% at surface
Tattnall County, GA 29 mi east · 0% at surface

What Montgomery County is built on

The largest mapped soluble unit here is the "Hawthorn Formation" (sand), Miocene in age, covering about 100% of the county.

Against the rest of Georgia

Montgomery County ranks 127 of 159 in Georgia for soluble rock at the surface, and sits above 0% of US counties on that measure.