Sinkhole risk in Benton County, OR: 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 675 square miles, under one square mile of Benton County maps onto soluble rock. With about 98,899 residents (146 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 636 map points about 1.0 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: how these percentages are measured, and the warning signs that apply anywhere.

Counties around Benton County

The nearest county rated sinkhole country is Emery County, UT, about 755 miles southeast. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

Lincoln County, OR 26 mi northwest · 0% at surface
Polk County, OR 28 mi north · 3% at surface
Linn County, OR 44 mi east · 0% at surface
Lane County, OR 47 mi southeast · 0% at surface
Marion County, OR 50 mi northeast · 0% at surface
Yamhill County, OR 52 mi north · 0% at surface

Against the rest of Oregon

Benton County ranks 13 of 36 in Oregon for soluble rock at the surface, and sits above 0% of US counties on that measure.