Sinkhole risk in Orleans 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%

The next step for one property

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

Across 170 square miles, under one square mile of Orleans Parish maps onto soluble rock. With about 362,701 residents (2,139 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 491 map points about 0.6 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 Orleans Parish

The nearest county rated sinkhole country is Noxubee County, MS, about 226 miles north. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

St. Tammany Parish, LA 25 mi north · 0% at surface
St. Charles Parish, LA 27 mi west · 0% at surface
St. John the Baptist Parish, LA 34 mi west · 0% at surface
Hancock County, MS 36 mi northeast · 0% at surface
Jefferson Parish, LA 38 mi south · 0% at surface
St. Bernard Parish, LA 41 mi east · 0% at surface

Against the rest of Louisiana

Orleans Parish ranks 36 of 64 in Louisiana for soluble rock at the surface, and sits above 0% of US counties on that measure.