Sinkhole risk in Knox 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%
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 716 square miles, under one square mile of Knox County maps onto soluble rock. With about 48,716 residents (68 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 390 map points about 1.4 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: why gypsum and salt move faster than limestone, and how these percentages are measured.
Counties around Knox County
The nearest county rated sinkhole country is Jo Daviess County, IL, about 99 miles north. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Warren County, IL 22 mi west · 0% at surface
- Stark County, IL 25 mi northeast · 0% at surface
- Peoria County, IL 25 mi southeast · 0% at surface
- Henry County, IL 29 mi north · 0% at surface
- Fulton County, IL 32 mi south · 0% at surface
- Mercer County, IL 33 mi northwest · 0% at surface
Against the rest of Illinois
Knox County ranks 63 of 102 in Illinois for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Hardin County 61%
- Jo Daviess County 58%
- Union County 53%
- Calhoun County 51%
- Alexander County 31%