How risky is your county?

What is the FEMA National Risk Index?

The National Risk Index is a public dataset from the Federal Emergency Management Agency that rates every US county's relative risk from 18 natural hazards — hurricanes, floods, wildfires, tornadoes, earthquakes, and more. Each county's score (0–100) blends three ingredients: Expected Annual Loss, the average dollar damage the county should expect per year; Social Vulnerability, how susceptible its population is to harm; and Community Resilience, its capacity to recover.

The scores are relative, not absolute — a score of 85 means higher calculated risk than about 85% of US counties, not an 85% chance of anything. And they're county-level: a Very High flood county still contains homes that will never flood. That makes the index best for comparing places and spotting which hazards deserve your attention, and worst for judging a specific address.

This site publishes FEMA's numbers as-is and adds navigation, per-county disaster history, and human-written guides. Start with how the index works, or browse the hazard guides for what each risk means in practice and how to prepare.