Teton County Disaster Risk

Teton County has a FEMA National Risk Index rating of Relatively Low, placing it in the 71th 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.

Teton County is evaluated for five major natural hazard types: wildfire (91th percentile), earthquake (87th percentile), flooding (35th percentile), tornado (19th percentile). The highest-risk hazard is wildfire at the 91th 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.

Teton County's composite risk percentile is 71th, compared to the Wyoming state average of 38th percentile. The state's overall risk rating is Very Low. This means Teton County faces higher natural disaster risk than the typical county in Wyoming.

Yes, Teton County's wildfire risk is at the 91th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Teton County is at the 35th 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.

Teton County's composite risk score of 71th percentile is above the Wyoming state average of 38th percentile. This elevated risk is driven by wildfire exposure (91th percentile), along with earthquake risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.