Sinkhole risk in Zavala County, TX: No soluble rock mapped

No soluble rock mapped

No soluble bedrock mapped.

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

The next step for one property

No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.

Across 1,297 square miles, under one square mile of Zavala County maps onto soluble rock. With about 9,209 residents (7 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 400 map points about 1.8 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 these percentages are measured.

Counties around Zavala County

The nearest county rated sinkhole country is Runnels County, TX, about 206 miles north. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.

Dimmit County, TX 30 mi south · 0% at surface
Uvalde County, TX 34 mi north · 54% at surface
Maverick County, TX 35 mi west · 6% at surface
Frio County, TX 39 mi east · 0% at surface
Medina County, TX 52 mi northeast · 37% at surface
Kinney County, TX 52 mi northwest · 54% at surface

Against the rest of Texas

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