Summit County Disaster Risk

Summit County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 91th 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.

Summit County is evaluated for five major natural hazard types: flooding (94th percentile), tornado (91th percentile), earthquake (78th percentile), hurricane (61th percentile), wildfire (53th percentile). The highest-risk hazard is flooding at the 94th 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.

Summit County's composite risk percentile is 91th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Summit County faces higher natural disaster risk than the typical county in Ohio.

Yes, Summit County's flooding risk is at the 94th percentile nationally. This places it in the top quartile for this hazard type.

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.

Summit County's composite risk score of 91th percentile is above the Ohio state average of 55th percentile. This elevated risk is driven by flooding exposure (94th percentile), along with tornado and earthquake and hurricane and wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.