Sinkhole risk in Hansford 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 920 square miles, under one square mile of Hansford County maps onto soluble rock. With about 5,006 residents (5 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 396 map points about 1.5 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 Hansford County

The nearest county rated sinkhole country is Donley County, TX, about 96 miles south. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Hutchinson County, TX 30 mi south · 12% at surface
Ochiltree County, TX 30 mi east · under 1% at surface
Sherman County, TX 30 mi west · 0% at surface
Texas County, OK 33 mi north · 2% at surface
Roberts County, TX 42 mi southeast · 0% at surface
Moore County, TX 42 mi southwest · 6% at surface

Against the rest of Texas

Hansford County ranks 184 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.