Sinkhole risk in Tazewell County, IL: 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 646 square miles, under one square mile of Tazewell County maps onto soluble rock. With about 129,821 residents (201 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 261 map points about 1.6 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: why gypsum and salt move faster than limestone, and how these percentages are measured.

Counties around Tazewell County

The nearest county rated sinkhole country is Calhoun County, IL, about 111 miles southwest. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Peoria County, IL 23 mi northwest · 0% at surface
Woodford County, IL 25 mi northeast · 0% at surface
Logan County, IL 27 mi south · 0% at surface
Mason County, IL 28 mi southwest · 0% at surface
McLean County, IL 35 mi east · 0% at surface
Fulton County, IL 36 mi west · 0% at surface

Against the rest of Illinois

Tazewell County ranks 94 of 102 in Illinois for soluble rock at the surface, and sits above 0% of US counties on that measure.