Roscommon County Disaster Risk

Roscommon County has a FEMA National Risk Index rating of Relatively Low, placing it in the 57th 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.

Roscommon County is evaluated for five major natural hazard types: flooding (72th percentile), wildfire (70th percentile), tornado (47th percentile), hurricane (26th percentile), earthquake (18th percentile). The highest-risk hazard is flooding at the 72th 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.

Roscommon County's composite risk percentile is 57th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Roscommon County faces higher natural disaster risk than the typical county in Michigan.

Yes, Roscommon County's flooding risk is at the 72th percentile nationally. This is above the national median.

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.

Roscommon County's composite risk score of 57th percentile is above the Michigan state average of 50th percentile. This elevated risk is driven by flooding exposure (72th percentile), along with wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.