Sinkhole risk in Harrison 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 Harrison County

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

Across 900 square miles, under one square mile of Harrison County maps onto soluble rock. With about 71,370 residents (79 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 301 map points about 1.7 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 Harrison County

The nearest county rated sinkhole country is Adair County, OK, about 232 miles north. 3 of the 6 closest counties land in the same band; the ground changes quickly around here.

Marion County, TX 17 mi north · 0% at surface
Gregg County, TX 26 mi west · 0% at surface
Panola County, TX 27 mi south · 0% at surface
Caddo Parish, LA 29 mi east · 0% at surface
Upshur County, TX 35 mi west · 0% at surface
Cass County, TX 37 mi north · 0% at surface

Against the rest of Texas

Harrison County ranks 187 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.