Sinkhole risk in Orange 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 to do about a house in Orange County

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

Across 334 square miles, under one square mile of Orange County maps onto soluble rock. With about 86,115 residents (258 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 250 map points about 1.2 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 Orange County

The nearest county rated sinkhole country is Oktibbeha County, MS, about 373 miles northeast. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Jefferson County, TX 24 mi southwest · 0% at surface
Calcasieu Parish, LA 33 mi east · 0% at surface
Hardin County, TX 33 mi northwest · 0% at surface
Jasper County, TX 44 mi north · 0% at surface
Newton County, TX 47 mi north · 0% at surface
Cameron Parish, LA 47 mi east · 0% at surface

Against the rest of Texas

Orange County ranks 219 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.