SinkholeOdds

Sinkhole risk in Hunt County, TX: Mostly deep or small

Mostly deep or small

Some soluble rock, mostly deeply buried or in a small share of the county.

On soluble rock
2%
At or near the surface
2%
Buried under cover
0%

What this means before you buy

Sinkholes are uncommon here; watch for new depressions after heavy rain or leaking pipes.

That works out to roughly 19 of Hunt County's 840 square miles on soluble rock, 19 of them with the rock at or near the surface. With about 118,729 residents (141 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 348 map points about 1.6 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: why gypsum and salt move faster than limestone, and how these percentages are measured.

Counties around Hunt County

The nearest county rated sinkhole country is Grady County, OK, about 167 miles northwest. 1 of the 6 closest counties land in the same band; the ground changes quickly around here.

Which formation it is

The largest mapped soluble unit here is the Pecan Gap Chalk (limestone), Late Cretaceous; Gulfian Series in age, covering about 2% of the county.

The county also lies over the Gulf Coast salt domes, a deep salt or gypsum basin. Deep beds rarely cause surface collapse on their own, but wells and mining into them have.

Against the rest of Texas

Hunt County ranks 134 of 254 in Texas for soluble rock at the surface, and sits above 58% of US counties on that measure.