Delta County Disaster Risk
Delta County, Colorado
FEMA Risk Rating
Relatively Low
National Percentile
51th
of 3,144 counties
State Rank
#20
of 64 (1 = highest risk)
Flood Risk
70th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively Low
Higher than 70% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Moderate
Higher than 87% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 9% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 68% of US counties
Risk Overview
About Natural Disaster Risk in Delta County, Colorado
Delta County's composite risk exceeds national average
Delta scores 51.27 on composite risk, placing it in the relatively low category but above the nation's typical exposure. The western Colorado county faces a meaningful combination of multiple natural hazards.
Above Colorado's average on all fronts
Delta's 51.27 composite score significantly exceeds Colorado's 40.67 state average, ranking it in the upper half of the state's 64 counties. The county faces greater-than-typical hazard exposure for Colorado.
Highest-risk county in western Colorado region
Delta (51.27) has similar composite risk to Chaffee County (51.11) but notably higher earthquake risk at 68.29. Both western counties face substantially more hazard exposure than safer surrounding areas.
Earthquake, wildfire, and flood create triple threat
Delta's earthquake risk of 68.29, wildfire risk of 86.74, and flood risk of 69.59 all rank among the highest in Colorado. These three hazards account for the county's elevated overall risk profile.
Multi-hazard insurance strategy is essential
Secure separate flood insurance immediately—standard homeowners policies exclude it, yet your flood risk is 69.59. Verify wildfire and earthquake coverage, and consider seismic retrofits for older structures in this higher-risk county.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Delta County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Delta County
Risk Verdict
Delta County has a below-average natural disaster risk profile, scoring at the 51th percentile nationally under FEMA's National Risk Index. Households in Delta County benefit from knowing which individual hazard types — flood, wildfire, tornado, or hurricane — are the primary contributors.
Hazard Breakdown
Wildfire risk is Delta County's dominant natural hazard, ranked at the 87th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 70th percentile nationally. Additional tracked hazards include earthquake (68th percentile), tornado (9th percentile).
Preparedness Context
Wildfire is Delta County's top-ranked natural hazard at the 87th percentile nationally. Delta County residents should assess whether their property lies within or adjacent to a Wildland-Urban Interface (WUI) zone, where ember transport and rapid spread pose the highest risk. The county's flood exposure at the 70th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. For Delta County households, a practiced evacuation plan — with a primary and backup route designated before a fire occurs — provides more protection than any structural improvement when a wildfire approaches fast-moving terrain.
Regional Context
Delta County's composite risk score sits 10.6 points above the Colorado county average, placing it among the more hazard-exposed counties in the state.
Is your household prepared for Delta County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Delta County, CO?
What types of natural hazards affect Delta County?
How does Delta County risk compare to the Colorado average?
Is Delta County at risk for wildfire?
How is natural disaster risk measured?
Why is Delta County higher risk than average?
Data Source
Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.
Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.