Sinkhole risk in Posey County, IN: 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 409 square miles, under one square mile of Posey County maps onto soluble rock. With about 25,067 residents (61 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 257 map points about 1.3 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why gypsum and salt move faster than limestone, and how these percentages are measured.

Counties around Posey County

The nearest county rated sinkhole country is Hardin County, IL, about 41 miles southwest. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Vanderburgh County, IN 15 mi east · 0% at surface
White County, IL 17 mi west · 0% at surface
Henderson County, KY 23 mi southeast · 0% at surface
Gibson County, IN 25 mi northeast · 0% at surface
Union County, KY 26 mi south · 0% at surface
Gallatin County, IL 27 mi southwest · 0% at surface

Against the rest of Indiana

Posey County ranks 73 of 92 in Indiana for soluble rock at the surface, and sits above 0% of US counties on that measure.