Sinkhole risk in Whitman County, WA: 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%

The next step for one property

No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.

Across 2,159 square miles, under one square mile of Whitman County maps onto soluble rock. With about 48,399 residents (22 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 268 map points about 2.8 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Whitman County

The nearest county rated sinkhole country is Emery County, UT, about 645 miles southeast. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Garfield County, WA 33 mi south · 0% at surface
Latah County, ID 38 mi east · 0% at surface
Columbia County, WA 46 mi southwest · 0% at surface
Adams County, WA 47 mi west · 0% at surface
Benewah County, ID 48 mi northeast · 0% at surface
Spokane County, WA 50 mi north · 0% at surface

Against the rest of Washington

Whitman County ranks 38 of 39 in Washington for soluble rock at the surface, and sits above 0% of US counties on that measure.