riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Denver County Disaster Risk

Denver County, Colorado

FEMA Risk Rating

Relatively High

National Percentile

95th

of 3,144 counties

State Rank

#1

of 64 (1 = highest risk)

Flood Risk

95th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively High

Higher than 95% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 61% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively High

Higher than 98% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 91% of US counties

Risk Overview

About Natural Disaster Risk in Denver County, Colorado

Denver's risk profile ranks high nationally

Denver County scores 95.23 on composite disaster risk, classifying it as Relatively High—more than double the state average of 40.67. This puts Denver among the more vulnerable counties nationwide for natural hazards when measured across multiple threat categories.

Second-highest risk in Colorado

Denver ranks near the top of Colorado's counties for disaster risk, trailing only a handful of counties statewide. Its proximity to the Front Range, combined with dense urban infrastructure, amplifies exposure to flooding, seismic activity, and severe weather.

Significantly riskier than surrounding counties

Denver's composite score of 95.23 far exceeds neighboring counties like Elbert (36.58) and El Paso (94.05), which are less densely developed. The concentration of people and property in Denver intensifies the potential impact of any single disaster event.

Tornadoes and earthquakes top the list

Denver faces a tornado risk score of 97.87 and earthquake risk of 91.03—both extreme threats. Flooding is equally concerning at 95.26, with the South Platte River and urban drainage systems creating vulnerability during heavy rainfall events.

Comprehensive coverage is essential here

Standard homeowners policies typically exclude flood and earthquake damage; Denver residents should secure separate policies for both hazards. Given the tornado threat, ensure your policy covers wind damage and consider a safe room or shelter in your home.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Denver County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    98th percentile
  2. #2
    FloodPrepare
    95th percentile
  3. #3
    EarthquakePrepare
    91th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Denver County

Risk Verdict

Denver County ranks in the top tier for natural disaster risk nationally, with a composite score at the 95th percentile. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.

Hazard Breakdown

Tornado risk is Denver County's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 95th percentile nationally. Additional tracked hazards include earthquake (91th percentile), wildfire (61th percentile).

Preparedness Context

Denver County ranks at the 98th percentile nationally for tornado exposure. Unlike many slow-onset hazards, tornadoes in Denver County can reach full intensity in minutes; a pre-practiced household shelter plan matters far more than stockpiled supplies. The secondary flood hazard at the 95th percentile nationally adds seasonal complexity to Denver County's preparedness calendar, since flood and tornado risk often peak at different points in the year. Denver County county emergency management typically publishes annual severe-weather preparedness guides tailored to local tornado patterns; households benefit from reviewing these before storm season begins each spring.

Regional Context

Compared to other Colorado counties, Denver County runs 54.6 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.

Is your household prepared for Denver County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Denver County, CO?
Denver County has a FEMA National Risk Index rating of Relatively High, placing it in the 95th 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.
What types of natural hazards affect Denver County?
Denver County is evaluated for five major natural hazard types: tornado (98th percentile), flooding (95th percentile), earthquake (91th percentile), wildfire (61th percentile). The highest-risk hazard is tornado at the 98th 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.
How does Denver County risk compare to the Colorado average?
Denver County's composite risk percentile is 95th, compared to the Colorado state average of 41th percentile. The state's overall risk rating is Very Low. This means Denver County faces higher natural disaster risk than the typical county in Colorado.
Is Denver County at risk for tornado?
Yes, Denver County's tornado risk is at the 98th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Denver County is at the 95th percentile.
How is natural disaster risk measured?
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.
Why is Denver County higher risk than average?
Denver County's composite risk score of 95th percentile is above the Colorado state average of 41th percentile. This elevated risk is driven by tornado exposure (98th percentile), along with flooding and earthquake and wildfire risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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.