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

El Dorado County Disaster Risk

El Dorado County, California

FEMA Risk Rating

Relatively Moderate

National Percentile

91th

of 3,144 counties

State Rank

#37

of 58 (1 = highest risk)

Flood Risk

92th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 92% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very High

Higher than 100% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 14% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 92% of US counties

Risk Overview

About Natural Disaster Risk in El Dorado County, California

El Dorado's moderate risk above national baseline

El Dorado County scores 91.41 on the composite risk scale, placing it in the 'Relatively Moderate' category and above the national average. While the county faces real hazard exposure, most residents have manageable disaster preparation needs. This rating reflects a balanced risk profile across multiple natural hazard types.

Moderate among California's 58 counties

El Dorado's composite risk score of 91.41 exceeds California's average of 88.72, positioning it in the mid-to-upper range of state counties. The county ranks above several neighbors and statewide peers despite facing significant wildfire exposure. This above-average rating warrants proactive disaster preparedness from residents and local officials.

Higher risk than inland valley neighbors

El Dorado's 91.41 score ranks higher than Glenn County (74.43) and Inyo County (79.33), but lower than neighboring high-risk counties like Kern (98.89) and Fresno (99.30). The county's earthquake and flood risks particularly exceed those of lower-risk inland neighbors. This positions El Dorado as a regional moderate-to-high risk area.

Wildfire and earthquake dominate El Dorado

Wildfire risk scores an extreme 99.71, making it the county's most pressing hazard—well above state average—while earthquake risk reaches 91.57. Flood risk also presents substantial exposure at 91.70, particularly relevant during wet winters in Sierra foothills communities. Together, these three hazards account for the county's elevated composite risk profile.

Secure wildfire and earthquake coverage now

El Dorado residents should prioritize home insurance that explicitly covers wildfire damage, given the county's extreme 99.71 wildfire score. Earthquake insurance—often sold separately from standard homeowners policies—is essential given the 91.57 earthquake risk score. Bundling these coverage types with flood insurance creates comprehensive protection against the county's three primary hazards.

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

Preparedness Guide

What to Prepare for in El Dorado County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    100th percentile
  2. #2
    FloodPrepare
    92th percentile
  3. #3
    EarthquakePrepare
    92th percentile

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

Risk Advisory: El Dorado County

Risk Verdict

At the 91th percentile nationally, El Dorado County sits in the upper half of U.S. counties for natural disaster exposure. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for El Dorado County residents.

Hazard Breakdown

Wildfire risk is El Dorado County's dominant natural hazard, ranked at the 100th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 92th percentile nationally. Additional tracked hazards include earthquake (92th percentile), tornado (14th percentile).

Preparedness Context

El Dorado County sits at the 100th percentile for wildfire exposure. Signing up for El Dorado County's county emergency alert system and knowing the pre-planned evacuation route before conditions deteriorate are the two highest-value preparedness actions for residents here. A secondary flood exposure at the 92th percentile nationally means El Dorado County residents face hazards from two distinct natural peril categories during different seasons. In El Dorado County, wildfire smoke often precedes the flame front by hours or days; households benefit from tracking EPA's AirNow.gov and having HEPA air filtration available as a first line of indoor protection when air quality alerts are issued.

Regional Context

El Dorado County sits within 2.7 composite points of the California state average, suggesting the county's hazard exposure is representative of the broader regional pattern.

Is your household prepared for El Dorado 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 El Dorado County, CA?
El Dorado County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 91th 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 El Dorado County?
El Dorado County is evaluated for five major natural hazard types: wildfire (100th percentile), flooding (92th percentile), earthquake (92th percentile), tornado (14th percentile). The highest-risk hazard is wildfire at the 100th 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 El Dorado County risk compare to the California average?
El Dorado County's composite risk percentile is 91th, compared to the California state average of 89th percentile. The state's overall risk rating is Relatively Moderate. This means El Dorado County faces higher natural disaster risk than the typical county in California.
Is El Dorado County at risk for wildfire?
Yes, El Dorado County's wildfire risk is at the 100th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, El Dorado County is at the 92th 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 El Dorado County higher risk than average?
El Dorado County's composite risk score of 91th percentile is above the California state average of 89th percentile. This elevated risk is driven by wildfire exposure (100th percentile), along with flooding and earthquake 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.