Rockdale County Disaster Risk

Rockdale County has a FEMA National Risk Index rating of Relatively Low, placing it in the 56th 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.

Rockdale County is evaluated for five major natural hazard types: tornado (77th percentile), earthquake (74th percentile), flooding (63th percentile), hurricane (54th percentile), wildfire (36th percentile). The highest-risk hazard is tornado at the 77th 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.

Rockdale County's composite risk percentile is 56th, compared to the Georgia state average of 40th percentile. The state's overall risk rating is Very Low. This means Rockdale County faces higher natural disaster risk than the typical county in Georgia.

Yes, Rockdale County's tornado risk is at the 77th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Rockdale County is at the 63th percentile.

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.

Rockdale County's composite risk score of 56th percentile is above the Georgia state average of 40th percentile. This elevated risk is driven by tornado exposure (77th percentile), along with earthquake and flooding and hurricane risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.