Sinkhole risk in Houston County, TX: Not karst, but voids possible

Not karst, but voids possible

No soluble bedrock; some pseudokarst (piping or lava-tube ground).

On soluble rock: 0%
At or near the surface: 0%
Buried under cover: 0%

What this means before you buy

Not true karst, but soil piping or lava tubes can still open voids - mention it to an inspector.

Across 1,231 square miles, under one square mile of Houston County maps onto soluble rock. With about 22,197 residents (18 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 578 map points about 1.5 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Houston County

The nearest county rated sinkhole country is Runnels County, TX, about 271 miles west. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

Trinity County, TX 22 mi southeast · 0% at surface
Leon County, TX 34 mi west · 0% at surface
Anderson County, TX 38 mi north · 0% at surface
Madison County, TX 39 mi southwest · 0% at surface
Cherokee County, TX 39 mi northeast · 0% at surface
Walker County, TX 41 mi south · 0% at surface

Against the rest of Texas

Houston County ranks 191 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.