Alexandria city Disaster Risk

Alexandria city has a FEMA National Risk Index rating of Relatively Low, placing it in the 74th 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.

Alexandria city is evaluated for five major natural hazard types: flooding (82th percentile), earthquake (80th percentile), hurricane (79th percentile), tornado (40th percentile), wildfire (6th percentile). The highest-risk hazard is flooding at the 82th 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.

Alexandria city's composite risk percentile is 74th, compared to the Virginia state average of 33th percentile. The state's overall risk rating is Very Low. This means Alexandria city faces higher natural disaster risk than the typical county in Virginia.

Yes, Alexandria city's flooding risk is at the 82th 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.

Alexandria city's composite risk score of 74th percentile is above the Virginia state average of 33th percentile. This elevated risk is driven by flooding exposure (82th percentile), along with earthquake and hurricane risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.