Sinkhole risk in Jefferson 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 301 square miles, under one square mile of Jefferson Parish maps onto soluble rock. With about 427,253 residents (1,420 per square mile), most of the county is built up, so a mapped unit is likely to sit under somebody's street. The figures come from 365 map points about 0.9 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 Jefferson Parish

The nearest county rated sinkhole country is Noxubee County, MS, about 264 miles north. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Lafourche Parish, LA 22 mi west · 0% at surface
Plaquemines Parish, LA 32 mi southeast · 0% at surface
St. Charles Parish, LA 34 mi northwest · 0% at surface
Orleans Parish, LA 38 mi north · 0% at surface
Terrebonne Parish, LA 50 mi west · 0% at surface
St. John the Baptist Parish, LA 52 mi northwest · 0% at surface

Against the rest of Louisiana

Jefferson Parish ranks 26 of 64 in Louisiana for soluble rock at the surface, and sits above 0% of US counties on that measure.