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

What to do about a house in Person County

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

Across 392 square miles, under one square mile of Person County maps onto soluble rock. With about 40,143 residents (102 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 381 map points about 1.0 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Person County

The nearest county rated sinkhole country is Harnett County, NC, about 71 miles south. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

• Granville County, NC 19 mi east · 0% at surface
• Caswell County, NC 20 mi west · 0% at surface
• Orange County, NC 24 mi south · 0% at surface
• Durham County, NC 25 mi south · 0% at surface
• Halifax County, VA 26 mi north · under 1% at surface
• Danville city, VA 28 mi northwest · 1% at surface

Against the rest of North Carolina

Person County ranks 89 of 100 in North Carolina for soluble rock at the surface, and sits above 0% of US counties on that measure.

• Duplin County 93%
• Jones County 92%
• Scotland County 91%
• Pender County 89%
• Robeson County 89%