Valley County Disaster Risk

Valley County has a FEMA National Risk Index rating of Very Low, placing it in the 36th 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.

Valley County is evaluated for five major natural hazard types: wildfire (49th percentile), flooding (34th percentile), earthquake (23th percentile), tornado (15th percentile). The highest-risk hazard is wildfire at the 49th 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.

Valley County's composite risk percentile is 36th, compared to the Montana state average of 33th percentile. The state's overall risk rating is Very Low. This means Valley County faces higher natural disaster risk than the typical county in Montana.

Yes, Valley County's wildfire risk is at the 49th percentile nationally. This is below the national median, indicating relatively lower exposure. For flooding specifically, Valley County is at the 34th 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.

Valley County's composite risk score of 36th percentile is above the Montana state average of 33th percentile. This elevated risk is driven by wildfire exposure (49th percentile). Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.