Sinkhole risk in Parker 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: 21%
At or near the surface: 21%
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 186 of Parker County's 904 square miles on soluble rock, 186 of them with the rock at or near the surface. With about 179,707 residents (199 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 384 map points about 1.5 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Parker County

The nearest county rated sinkhole country is Baylor County, TX, about 100 miles northwest. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Hood County, TX 24 mi south · 42% at surface
Palo Pinto County, TX 30 mi west · 39% at surface
Tarrant County, TX 30 mi east · 41% at surface
Wise County, TX 32 mi north · 24% at surface
Johnson County, TX 38 mi southeast · 18% at surface
Jack County, TX 38 mi northwest · 23% at surface

What Parker County is built on

The largest mapped soluble unit here is the Goodland Limestone and Walnut Clay, undivided (limestone), Early Cretaceous; Comanchean Series in age, covering about 8% of the county. Next is the Glen Rose Limestone at 7%.

Against the rest of Texas

Parker County ranks 101 of 254 in Texas for soluble rock at the surface, and sits above 75% of US counties on that measure.