Sinkhole risk in Macoupin 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 to do about a house in Macoupin County
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 863 square miles, under one square mile of Macoupin County maps onto soluble rock. With about 43,895 residents (51 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 399 map points about 1.5 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 Macoupin County
The nearest county rated sinkhole country is Calhoun County, IL, about 40 miles west. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Montgomery County, IL 24 mi east · 0% at surface
- Greene County, IL 25 mi west · 0% at surface
- Jersey County, IL 27 mi southwest · 7% at surface
- Madison County, IL 30 mi south · 0% at surface
- Morgan County, IL 35 mi northwest · 0% at surface
- Sangamon County, IL 37 mi north · 0% at surface
Against the rest of Illinois
Macoupin County ranks 72 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%