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RiskByCounty is part of the ByCounty Network, a data platform providing free county-level statistics from official government sources. We welcome questions or corrections about how this site displays its source data and documents its methodology.
ByCounty Network
Part of a family of county-data sites including TaxByCounty, CountyScore, and more.
Data Source
Current displayed county fields come from FEMA NRI v1.20, released December 2025. Each value is an NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18: flood, wildfire, tornado, earthquake, and hurricane. Flood is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For the source methodology, visit FEMA National Risk Index.