Sinkhole risk in Andrew County, MO: Pockets of it

Pockets of it

Soluble rock at the surface or under thin cover in part of the county.

On soluble rock: 76%
At or near the surface: 0%
Buried under cover: 76%

What this means before you buy

Check the parcel against your state survey sinkhole map, and ask for an inspection if cracks, depressions or sticking doors show up.

That works out to roughly 331 of Andrew County's 433 square miles on soluble rock. With about 18,091 residents (42 per square mile), much of the land is open, and the mapped rock may sit far from where people actually live. The figures come from 322 map points about 1.2 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Andrew County

The nearest county rated sinkhole country is Jackson County, MO, about 72 miles south. 1 of the 6 closest counties land in the same band; the ground changes quickly around here.

DeKalb County, MO 22 mi east · 0% at surface
Buchanan County, MO 23 mi south · 0% at surface
Doniphan County, KS 23 mi southwest · 0% at surface
Holt County, MO 23 mi west · 0% at surface
Gentry County, MO 26 mi northeast · 0% at surface
Nodaway County, MO 26 mi north · 0% at surface

Which formation it is

The largest mapped soluble unit here is the Shawnee Group (limestone), Late Pennsylvanian-Upper Series-Virgilian Stage in age, covering about 65% of the county. Next is the Lansing Group at 11%.

Against the rest of Missouri

Andrew County ranks 77 of 115 in Missouri for soluble rock at the surface, and sits above 0% of US counties on that measure.