National Risk Index for Natural Hazards

Federal Emergency Management Agency

Data Resources
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This online tool illustrates communities in the United States most at risk from 18 natural hazards, including coastal flooding, hurricanes, and tsunamis. The interactive, data-based mapping interface enables users to visually explore individual data sets, with minimal technical expertise, to better understand what is driving a community’s natural hazard risk. The risk index leverages available source data for natural hazards and community risk factors to develop a baseline for risk measurement in each U.S. county and Census tract.

The National Risk Index Homepage


  • Get relative risk index ratings based on data for expected annual loss, social vulnerability, and community resilience
  • Generate printable reports containing risk index scores and ratings for one or more communities
  • Export data for custom analysis

Additional Information