Sinkhole risk in Johnson County, KY: 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 262 square miles, under one square mile of Johnson County maps onto soluble rock. With about 22,098 residents (84 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 250 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 Johnson County

The nearest county rated sinkhole country is Fleming County, KY, about 59 miles northwest. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Lawrence County, KY 16 mi north · 0% at surface
Magoffin County, KY 17 mi southwest · 0% at surface
Martin County, KY 18 mi east · 0% at surface
Floyd County, KY 21 mi south · 0% at surface
Elliott County, KY 24 mi northwest · 1% at surface
Morgan County, KY 24 mi west · 0% at surface

Against the rest of Kentucky

Johnson County ranks 106 of 120 in Kentucky for soluble rock at the surface, and sits above 0% of US counties on that measure.