Sinkhole risk in Burnet 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: 63%
At or near the surface: 63%
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 625 of Burnet County's 995 square miles on soluble rock, 625 of them with the rock at or near the surface. With about 55,722 residents (56 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 266 map points about 1.9 miles apart, so a pocket smaller than that can be missed or overstated.

Worth reading for this county: the signs to look for and how an inspection works, and how these percentages are measured.

Counties around Burnet County

The nearest county rated sinkhole country is Runnels County, TX, about 128 miles northwest. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Lampasas County, TX 28 mi north · 57% at surface
Llano County, TX 29 mi west · 11% at surface
Williamson County, TX 37 mi east · 46% at surface
Blanco County, TX 38 mi south · 90% at surface
San Saba County, TX 44 mi northwest · 59% at surface
Bell County, TX 46 mi east · 32% at surface

What Burnet County is built on

The largest mapped soluble unit here is the Paluxy Sand and Glen Rose Limestone, undivided (sandstone), Early Cretaceous in age, covering about 23% of the county. Next is the Glen Rose Limestone at 12%.

Against the rest of Texas

Burnet County ranks 32 of 254 in Texas for soluble rock at the surface, and sits above 91% of US counties on that measure.