Sinkhole risk in Mercer 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 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 224 square miles, under one square mile of Mercer County maps onto soluble rock. With about 392,138 residents (1,747 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 466 map points about 0.7 miles apart, so a pocket smaller than that can be missed or overstated.
Two things to read before deciding: how these percentages are measured, and the warning signs that apply anywhere.
Counties around Mercer County
The nearest county rated sinkhole country is Union County, PA, about 132 miles west. 2 of the 6 closest counties land in the same band; the ground changes quickly around here.
- Middlesex County, NJ 19 mi northeast · 0% at surface
- Somerset County, NJ 20 mi north · under 1% at surface
- Bucks County, PA 22 mi west · 2% at surface
- Hunterdon County, NJ 22 mi northwest · 5% at surface
- Burlington County, NJ 28 mi south · 4% at surface
- Monmouth County, NJ 29 mi east · 13% at surface
Against the rest of New Jersey
Mercer County ranks 17 of 21 in New Jersey for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Salem County 15%
- Monmouth County 13%
- Warren County 10%
- Gloucester County 9%
- Camden County 6%