Alamance County Disaster Risk

Alamance County has a FEMA National Risk Index rating of Relatively Low, placing it in the 77th 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.

Alamance County is evaluated for five major natural hazard types: flooding (84th percentile), tornado (82th percentile), hurricane (82th percentile), earthquake (73th percentile), wildfire (31th percentile). The highest-risk hazard is flooding at the 84th 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.

Alamance County's composite risk percentile is 77th, compared to the North Carolina state average of 67th percentile. The state's overall risk rating is Relatively Low. This means Alamance County faces higher natural disaster risk than the typical county in North Carolina.

Yes, Alamance County's flooding risk is at the 84th 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.

Alamance County's composite risk score of 77th percentile is above the North Carolina state average of 67th percentile. This elevated risk is driven by flooding exposure (84th percentile), along with tornado and hurricane and earthquake risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.