Sinkhole risk in Greene County, IA: 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 Greene County
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 570 square miles, under one square mile of Greene County maps onto soluble rock. With about 8,662 residents (15 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 391 map points about 1.2 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 Greene County
The nearest county rated sinkhole country is Clayton County, IA, about 166 miles east. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Boone County, IA 23 mi east · 0% at surface
- Carroll County, IA 25 mi west · 0% at surface
- Guthrie County, IA 25 mi south · 0% at surface
- Calhoun County, IA 27 mi northwest · 0% at surface
- Webster County, IA 29 mi north · 0% at surface
- Dallas County, IA 30 mi southeast · 0% at surface
Against the rest of Iowa
Greene County ranks 43 of 99 in Iowa for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Clayton County 54%
- Dubuque County 34%
- Jackson County 33%
- Allamakee County 25%
- Fayette County 19%