Sinkhole risk in Randolph County, NC: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

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

What to do about a house in Randolph County

No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.

Across 782 square miles, under one square mile of Randolph County maps onto soluble rock. With about 148,389 residents (190 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 374 map points about 1.4 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Randolph County

The nearest county rated sinkhole country is Hoke County, NC, about 57 miles southeast. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Davidson County, NC 23 mi west · 0% at surface
Guilford County, NC 26 mi north · 0% at surface
Montgomery County, NC 27 mi south · 8% at surface
Chatham County, NC 31 mi east · 0% at surface
Alamance County, NC 32 mi northeast · 0% at surface
Moore County, NC 33 mi southeast · 36% at surface

Against the rest of North Carolina

Randolph County ranks 91 of 100 in North Carolina for soluble rock at the surface, and sits above 0% of US counties on that measure.