Sinkhole risk in Oswego County, NY: No soluble rock mapped

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 952 square miles, under one square mile of Oswego County maps onto soluble rock. With about 118,305 residents (124 per square mile), homes are spread across towns and farmland, and a mapped unit may or may not reach the developed parts. The figures come from 249 map points about 2.0 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 Oswego County

The nearest county rated sinkhole country is Union County, PA, about 178 miles south. None of the 6 closest counties land in the same band, so Oswego County stands out from its surroundings.

• Onondaga County, NY 31 mi south · 0% at surface
• Cayuga County, NY 36 mi southwest · under 1% at surface
• Jefferson County, NY 38 mi north · 0% at surface
• Oneida County, NY 42 mi east · 0% at surface
• Lewis County, NY 44 mi northeast · 0% at surface
• Wayne County, NY 45 mi west · 0% at surface

Against the rest of New York

Oswego County ranks 40 of 62 in New York for soluble rock at the surface, and sits above 0% of US counties on that measure.

• New York County under 1%
• St. Lawrence County under 1%
• Saratoga County under 1%
• Cayuga County under 1%
• Clinton County under 1%