Sinkhole risk in Madera County, CA: 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 Madera County
No soluble bedrock is mapped here, so natural sinkholes are unlikely. Collapses from broken pipes or old mines are a separate risk.
Across 2,137 square miles, under one square mile of Madera County maps onto soluble rock. With about 165,432 residents (77 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 380 map points about 2.4 miles apart, so a pocket smaller than that can be missed or overstated.
Read next: how these percentages are measured, and the warning signs that apply anywhere.
Counties around Madera County
The nearest county rated sinkhole country is Emery County, UT, about 506 miles east. 5 of the 6 closest counties land in the same band, so this is a regional pattern rather than a local quirk.
- Mariposa County, CA 27 mi north · 0% at surface
- Fresno County, CA 31 mi south · 0% at surface
- Merced County, CA 54 mi west · 0% at surface
- Tuolumne County, CA 57 mi north · under 1% at surface
- Mono County, CA 68 mi northeast · 2% at surface
- Stanislaus County, CA 73 mi west · 0% at surface
Against the rest of California
Madera County ranks 38 of 58 in California for soluble rock at the surface, and sits above 0% of US counties on that measure.
- Trinity County 25%
- Inyo County 17%
- Ventura County 9%
- Shasta County 9%
- Siskiyou County 9%