About DisasterRiskIndex.com
DisasterRiskIndex.com turns FEMA's public-domain National Risk Index into a free, searchable, per-county view of natural disaster risk across the United States.
Data source & attribution
All risk figures come from the FEMA National Risk Index (NRI), v1.20, released December 2025 under OpenFEMA's public-domain terms. FEMA requests attribution but does not endorse or sponsor this site. Definitions follow FEMA's data dictionary.
What the scores mean
Each county's Composite Risk Index (0–100) combines three inputs across 18 hazard types: Expected Annual Loss (the average yearly dollar loss from natural hazards), Social Vulnerability (how sensitive the population is to harm), and Community Resilience (capacity to recover). Ratings run from Very Low to Very High.
Limitations
- Risk is county-level, not address-specific. Your individual property may differ substantially.
- Expected Annual Loss is a statistical average, not a forecast for any given year.
- The NRI is updated roughly annually; figures reflect v1.20.
Contact
Questions or corrections? Email [email protected].