SSURGO National Analysis · 4,089 Survey Areas

America's 100 Most At-Risk Counties

Ranked by combined Fragile Soil Index and Organic Matter Depletion risk score from 967,000+ SSURGO map unit interpretations. Updated weekly from the USDA Soil Data Access API.

Counties ranked
Most at-risk state
Avg FSI (top 100)
Avg OM depletion
Show top
Rank County / Survey Area State FSI Class FSI Score OM Class OM Score Combined Risk ▼
Loading soil data…