San Juan County Disaster Risk

San Juan County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 88th 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.

San Juan County is evaluated for five major natural hazard types: flooding (92th percentile), earthquake (84th percentile), wildfire (82th percentile), tornado (23th percentile). The highest-risk hazard is flooding at the 92th 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.

San Juan County's composite risk percentile is 88th, compared to the New Mexico state average of 59th percentile. The state's overall risk rating is Relatively Low. This means San Juan County faces higher natural disaster risk than the typical county in New Mexico.

Yes, San Juan County's flooding risk is at the 92th percentile nationally. This places it in the top quartile for this hazard type.

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.

San Juan County's composite risk score of 88th percentile is above the New Mexico state average of 59th percentile. This elevated risk is driven by flooding exposure (92th percentile), along with earthquake and wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.