Sinkhole risk in Isabella County, MI: 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 573 square miles, under one square mile of Isabella County maps onto soluble rock. With about 65,072 residents (114 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 1.2 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 Isabella County

The nearest county rated sinkhole country is Newaygo County, MI, about 48 miles west. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Midland County, MI 23 mi east · 0% at surface
Clare County, MI 24 mi north · 0% at surface
Mecosta County, MI 25 mi west · 0% at surface
Gratiot County, MI 27 mi southeast · 0% at surface
Montcalm County, MI 28 mi southwest · 0% at surface
Gladwin County, MI 33 mi northeast · 0% at surface

Against the rest of Michigan

Isabella County ranks 45 of 83 in Michigan for soluble rock at the surface, and sits above 0% of US counties on that measure.