Ozaukee County Disaster Risk

Ozaukee County has a FEMA National Risk Index rating of Relatively Low, placing it in the 50th 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.

Ozaukee County is evaluated for five major natural hazard types: tornado (59th percentile), flooding (58th percentile), earthquake (26th percentile), wildfire (19th percentile), hurricane (7th percentile). The highest-risk hazard is tornado at the 59th 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.

Ozaukee County's composite risk percentile is 50th, compared to the Wisconsin state average of 59th percentile. The state's overall risk rating is Relatively Low. This means Ozaukee County faces lower natural disaster risk than the typical county in Wisconsin.

Yes, Ozaukee County's tornado risk is at the 59th percentile nationally. This is above the national median. For flooding specifically, Ozaukee County is at the 58th 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.

Ozaukee County's composite risk score of 50th percentile is below the Wisconsin state average of 59th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is tornado at the 59th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.