Lake County Disaster Risk
Lake County, California
FEMA Risk Rating
Relatively Moderate
National Percentile
93th
of 3,144 counties
State Rank
#35
of 58 (1 = highest risk)
Flood Risk
94th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Moderate
Higher than 94% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Relatively High
Higher than 99% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 11% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively High
Higher than 97% of US counties
Risk Overview
About Natural Disaster Risk in Lake County, California
Lake County's composite risk
Lake County scores 93.0 on the composite risk scale, earning a "Relatively Moderate" rating—above the national average and higher than California's state average of 88.7. This reflects meaningful exposure to multiple hazard types, particularly wildfire and earthquake risk.
Sixth most at-risk in California
Lake County ranks 6th in disaster risk among California's 58 counties, placing it squarely in the state's higher-risk tier. Only Los Angeles, Madera, Merced, Mendocino, and Marin counties face comparably elevated composite risks.
More exposed than regional peers
Lake County's 93.0 risk score significantly exceeds neighboring Lassen County (73.1) and matches the elevated risk profile of nearby North Bay counties. Its wildfire risk of 99.1 is among the state's highest, reflecting the region's fire-prone geography.
Wildfire and earthquake dominate
Lake County faces extreme wildfire risk (99.1 out of 100) and serious earthquake risk (97.0), making these the county's primary natural hazard concerns. Flood risk also scores high at 94.2, adding a third significant vulnerability that residents should monitor.
Prioritize comprehensive coverage
Given Lake County's very high wildfire, earthquake, and flood risks, homeowners should carry dedicated wildfire and earthquake insurance alongside standard homeowners policies. Review your coverage annually and ensure your home meets current defensible-space standards.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Lake County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Lake County
Risk Verdict
Natural hazard risk in Lake County is higher than the majority of U.S. counties, with a national composite rank of 93th. Lake County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.
Hazard Breakdown
Wildfire risk is Lake County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 97th percentile nationally. Additional tracked hazards include flood (94th percentile), tornado (11th percentile).
Preparedness Context
At the 99th percentile nationally for wildfire, Lake County residents should verify whether their insurance policy includes replacement cost coverage for structures and whether the insurer still writes new policies in this fire-risk zone. Alongside wildfire, earthquake at the 97th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. Local USFS or Cal Fire (where applicable) fire risk maps and seasonal Red Flag Warning alerts from the National Weather Service are two free resources Lake County residents can use to stay ahead of rapidly changing wildfire conditions.
Regional Context
Lake County's composite risk score is within 4.3 points of the California county average — a close alignment that reflects a broadly representative hazard environment for this part of the state.
Is your household prepared for Lake County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Lake County, CA?
What types of natural hazards affect Lake County?
How does Lake County risk compare to the California average?
Is Lake County at risk for wildfire?
How is natural disaster risk measured?
Why is Lake 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.