This layer displays the FEMA National Risk Index score, rating and national and state percentiles for each county and Census tract. These are measures of risks U.S. communities are exposed to for 18 natural hazards. Data was obtained from the FEMA National Risk Index (the March, 2023 version).

This layer displays the FEMA National Risk Index score, rating and national and state percentiles for each county and Census tract. These are measures of risks U.S. communities are exposed to for 18 natural hazards. Data was obtained from the FEMA National Risk Index (the Nov. 2021 version).

The National Risk Index (NRI) is a dataset and an application that help identify communities most at-risk for natural hazards. The NRI leverages available source data for 18 natural hazards, social vulnerability, and community resilience to develop a baseline relative risk measurement for each United Statescounty and Census tract. The NRI is intended to help users better understand the natural hazard risk of their communities or assigned areas.