Sinkhole risk in Sabine 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%

The next step for one property

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

Across 492 square miles, under one square mile of Sabine County maps onto soluble rock. With about 10,058 residents (20 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 267 map points about 1.4 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: why gypsum and salt move faster than limestone, and how ground with no limestone still opens up.

Counties around Sabine County

The nearest county rated sinkhole country is Adair County, OK, about 318 miles north. 1 of the 6 closest counties land in the same band; the ground changes quickly around here.

San Augustine County, TX 19 mi west · 0% at surface
Sabine Parish, LA 23 mi northeast · 0% at surface
Shelby County, TX 35 mi northwest · 0% at surface
Newton County, TX 39 mi south · 0% at surface
Jasper County, TX 42 mi south · 0% at surface
Vernon Parish, LA 43 mi southeast · 0% at surface

Against the rest of Texas

Sabine County ranks 229 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.