Sinkhole risk in Franklin 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 this means before you buy

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

Across 492 square miles, under one square mile of Franklin County maps onto soluble rock. With about 79,771 residents (162 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 554 map points about 0.9 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Franklin County

The nearest county rated sinkhole country is Wilson County, NC, about 34 miles southeast, 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.

Nash County, NC 19 mi southeast · 16% at surface
Vance County, NC 20 mi north · 0% at surface
Warren County, NC 24 mi northeast · 0% at surface
Granville County, NC 25 mi northwest · 0% at surface
Wake County, NC 29 mi southwest · 8% at surface
Durham County, NC 33 mi west · 0% at surface

Against the rest of North Carolina

Franklin County ranks 77 of 100 in North Carolina for soluble rock at the surface, and sits above 0% of US counties on that measure.