Sinkhole risk in Minidoka County, ID: Not karst, but voids possible

Not karst, but voids possible

No soluble bedrock; some pseudokarst (piping or lava-tube ground).

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

The next step for one property

Not true karst, but soil piping or lava tubes can still open voids - mention it to an inspector.

Across 757 square miles, under one square mile of Minidoka County maps onto soluble rock. With about 22,691 residents (30 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 625 map points about 1.1 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: how ground with no limestone still opens up, and how these percentages are measured.

Counties around Minidoka County

The nearest county rated sinkhole country is Emery County, UT, about 306 miles southeast. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Lincoln County, ID 28 mi west · 0% at surface
Jerome County, ID 34 mi west · 0% at surface
Cassia County, ID 40 mi south · 7% at surface
Blaine County, ID 40 mi northwest · 16% at surface
Power County, ID 42 mi east · 18% at surface
Gooding County, ID 60 mi west · 0% at surface

Against the rest of Idaho

Minidoka County ranks 41 of 44 in Idaho for soluble rock at the surface, and sits above 0% of US counties on that measure.