Sinkhole risk in Harris County, TX: 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 1,707 square miles, under one square mile of Harris County maps onto soluble rock. With about 5,009,302 residents (2,934 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 246 map points about 2.6 miles apart, so a pocket smaller than that can be missed or overstated.

Counties around Harris County

The nearest county rated sinkhole country is Runnels County, TX, about 305 miles northwest. 6 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.

Montgomery County, TX 31 mi north · 0% at surface
Fort Bend County, TX 32 mi southwest · 0% at surface
Waller County, TX 37 mi west · 0% at surface
Liberty County, TX 39 mi northeast · 0% at surface
Chambers County, TX 45 mi east · 0% at surface
Brazoria County, TX 48 mi south · 0% at surface

Against the rest of Texas

Harris County ranks 186 of 254 in Texas for soluble rock at the surface, and sits above 0% of US counties on that measure.