Sinkhole risk in Clinton County, IN: Mostly deep or small

Mostly deep or small

Some soluble rock, mostly deeply buried or in a small share of the county.

On soluble rock: 54%
At or near the surface: 0%
Buried under cover: 54%

The next step for one property

Sinkholes are uncommon here; watch for new depressions after heavy rain or leaking pipes.

That works out to roughly 218 of Clinton County's 405 square miles on soluble rock. With about 32,895 residents (81 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 393 map points about 1.0 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why the 54% under cover still counts, and how these percentages are measured.

Counties around Clinton County

The nearest county rated sinkhole country is Monroe County, IN, about 79 miles south. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Boone County, IN 18 mi south · 0% at surface
Carroll County, IN 20 mi north · under 1% at surface
Tipton County, IN 22 mi east · 0% at surface
Tippecanoe County, IN 23 mi west · 0% at surface
Howard County, IN 23 mi northeast · 0% at surface
Montgomery County, IN 29 mi southwest · 0% at surface

The rock underneath

The largest mapped soluble unit here is the Muscatatuck Group (limestone), Devonian in age, covering about 30% of the county. Next is the Wabash Formation at 24%.

Against the rest of Indiana

Clinton County ranks 42 of 92 in Indiana for soluble rock at the surface, and sits above 0% of US counties on that measure.