Sinkhole risk in Kinney County, TX: Pockets of it

Pockets of it

Soluble rock at the surface or under thin cover in part of the county.

On soluble rock: 54%
At or near the surface: 54%
Buried under cover: 0%

The next step for one property

Check the parcel against your state survey sinkhole map, and ask for an inspection if cracks, depressions or sticking doors show up.

That works out to roughly 732 of Kinney County's 1,361 square miles on soluble rock, 732 of them with the rock at or near the surface. With about 3,191 residents (2 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 370 map points about 1.9 miles apart, so a pocket smaller than that can be missed or overstated.

Two things to read before deciding: the signs to look for and how an inspection works, and how these percentages are measured.

Counties around Kinney County

The nearest county rated sinkhole country is Runnels County, TX, about 175 miles north. 4 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Uvalde County, TX 39 mi east · 54% at surface
Maverick County, TX 43 mi south · 6% at surface
Edwards County, TX 45 mi north · 99% at surface
Real County, TX 49 mi northeast · 96% at surface
Zavala County, TX 52 mi southeast · 0% at surface
Val Verde County, TX 57 mi northwest · 90% at surface

Which formation it is

The largest mapped soluble unit here is the Salmon Peak Limestone (limestone), Early Cretaceous in age, covering about 20% of the county. Next is the Austin Chalk at 11%.

Against the rest of Texas

Kinney County ranks 46 of 254 in Texas for soluble rock at the surface, and sits above 88% of US counties on that measure.