Sinkhole risk in Kosciusko 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: 44%
At or near the surface: 0%
Buried under cover: 44%

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 236 of Kosciusko County's 531 square miles on soluble rock. With about 80,669 residents (152 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 365 map points about 1.2 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: why the 44% under cover still counts, and how these percentages are measured.

Counties around Kosciusko County

The nearest county rated sinkhole country is Barry County, MI, about 97 miles north. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Whitley County, IN 20 mi east · 0% at surface
Marshall County, IN 22 mi west · 0% at surface
Elkhart County, IN 25 mi north · 0% at surface
Fulton County, IN 25 mi southwest · 0% at surface
Noble County, IN 26 mi northeast · 0% at surface
Wabash County, IN 28 mi south · 0% at surface

The rock underneath

The largest mapped soluble unit here is the Muscatatuck Group (limestone), Devonian in age, covering about 40% of the county. Next is the Wabash Formation at 5%.

Against the rest of Indiana

Kosciusko County ranks 61 of 92 in Indiana for soluble rock at the surface, and sits above 0% of US counties on that measure.