Union County Disaster Risk

Union County has a FEMA National Risk Index rating of Very Low, placing it in the 33th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.

Union County is evaluated for five major natural hazard types: flooding (53th percentile), tornado (49th percentile), earthquake (49th percentile), hurricane (23th percentile), wildfire (4th percentile). The highest-risk hazard is flooding at the 53th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.

Union County's composite risk percentile is 33th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Union County faces lower natural disaster risk than the typical county in Ohio.

Yes, Union County's flooding risk is at the 53th percentile nationally. This is above the national median.

FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.

Union County's composite risk score of 33th percentile is below the Ohio state average of 55th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is flooding at the 53th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.