SinkholeOdds

Sinkhole risk in Starr 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%

What this means before you buy

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

Across 1,223 square miles, under one square mile of Starr County maps onto soluble rock. With about 66,587 residents (54 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 247 map points about 2.2 miles apart, so a pocket smaller than that can be missed or overstated.

Read next: why gypsum and salt move faster than limestone, and how these percentages are measured.

Counties around Starr County

The nearest county rated sinkhole country is Runnels County, TX, about 375 miles north. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Against the rest of Texas

Starr County ranks 236 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.