Sinkhole risk in Oneida County, ID: Pockets of it

Pockets of it

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

On soluble rock: 44%
At or near the surface: 44%
Buried under cover: 0%

The next step for one property

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 522 of Oneida County's 1,199 square miles on soluble rock, 522 of them with the rock at or near the surface. With about 4,976 residents (4 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 292 map points about 2.0 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: the signs to look for and how an inspection works, and how these percentages are measured.

Counties around Oneida County

The nearest county rated sinkhole country is Emery County, UT, about 239 miles southeast. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Franklin County, ID 36 mi east · 37% at surface
Bannock County, ID 38 mi northeast · 29% at surface
Power County, ID 39 mi northwest · 18% at surface
Box Elder County, UT 48 mi southwest · 12% at surface
Cache County, UT 51 mi southeast · 41% at surface
Cassia County, ID 57 mi west · 7% at surface

Which formation it is

The largest mapped soluble unit here is the Limestone, arenite, dolostone, chert, siltstone, shale; Upper Paleozoic marine continental-shelf deposits; southeastern Idaho (limestone), Late Paleozoic in age, covering about 26% of the county. Next is the Limestone, dolostone, arenite, shale, and siltstone; Lower Paleozoic marine continental-shelf deposits; southeastern Idaho; at 9%.

Against the rest of Idaho

Oneida County ranks 2 of 44 in Idaho for soluble rock at the surface, and sits above 85% of US counties on that measure.