The National Risk Index is a dataset and online tool to help illustrate the U.S. communities most at risk for 18 natural hazards: Avalanche, Coastal Flooding, Cold Wave, Drought, Earthquake, Hail, Heat Wave, Hurricane, Ice Storm, Landslide, Lightning, Riverine Flooding, Strong Wind, Tornado, Tsunami, Volcanic Activity, Wildfire, and Winter Weather. It was designed and built by the Federal Emergency Management Agency (FEMA) in close collaboration with various stakeholders and partners in academia; local, state, and federal government; and private industry.
The National Risk Index leverages available source data for natural hazard and community risk factors to develop a baseline relative risk measurement for each U.S. county and Census tract. It is intended to help users better understand the natural hazard risk of their communities.
To learn more about and access the latest National Risk Index, visit fema.gov/nri.
This page provides access to archived National Risk Index downloads and new prototype resources.
The National Risk Index Data Archive provides access to old versions of National Risk Index downloads, including datasets in geospatial and table formats and accompanying metadata and technical documentation.
Do you have questions about the differences between versions of the National Risk Index? Review the Data Version and Update Documentation or contact FEMA-NRI@fema.dhs.gov.
Access prototype resources for the National Risk Index, including data downloads, documentation, and other tools that are being released in response to inquiries and feedback from users and to test proposed, future enhancements of the National Risk Index.