Sinkhole risk in Hudson County, NJ: 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 Hudson County

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

Across 46 square miles, under one square mile of Hudson County maps onto soluble rock. With about 736,185 residents (15,937 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 517 map points about 0.3 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Hudson County

The nearest county rated sinkhole country is Union County, PA, about 156 miles west. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

New York County, NY 6 mi northeast · under 1% at surface
Kings County, NY 9 mi southeast · 0% at surface
Essex County, NJ 10 mi northwest · 0% at surface
Richmond County, NY 12 mi south · 0% at surface
Union County, NJ 13 mi west · 0% at surface
Queens County, NY 14 mi southeast · 0% at surface

Against the rest of New Jersey

Hudson County ranks 16 of 21 in New Jersey for soluble rock at the surface, and sits above 0% of US counties on that measure.