Sinkhole risk in Union Parish, LA: 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 877 square miles, under one square mile of Union Parish maps onto soluble rock. With about 20,617 residents (24 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 317 map points about 1.7 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 Union Parish

The nearest county rated sinkhole country is Oktibbeha County, MS, about 207 miles east. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Lincoln Parish, LA 23 mi southwest · 0% at surface
Union County, AR 27 mi northwest · 0% at surface
Ouachita Parish, LA 27 mi southeast · 0% at surface
Morehouse Parish, LA 33 mi east · 0% at surface
Claiborne Parish, LA 36 mi west · 0% at surface
Jackson Parish, LA 38 mi south · 0% at surface

Against the rest of Louisiana

Union Parish ranks 56 of 64 in Louisiana for soluble rock at the surface, and sits above 0% of US counties on that measure.