Cowlitz County Disaster Risk
Cowlitz County, Washington
FEMA Risk Rating
Relatively Moderate
National Percentile
90th
of 3,144 counties
State Rank
#12
of 39 (1 = highest risk)
Flood Risk
88th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Moderate
Higher than 88% 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
Very Low
Higher than 21% 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 Cowlitz County, Washington
Cowlitz County faces high disaster risk
Cowlitz County's composite risk score of 90.30 places it in the relatively moderate risk category, well above the national average. The county experiences meaningful natural hazard exposure that requires active preparedness planning from residents.
Fourth-highest risk in Washington
Cowlitz County ranks among Washington's most hazardous counties with a score of 90.30, exceeding the state average of 70.01 by nearly 29%. Only Clark, Chelan, and Clallam counties face greater overall disaster risk in the state.
Hazardous region in southwestern Washington
Cowlitz County (90.30) faces comparable risk to Clark County (92.24) just to the south, creating a particularly hazardous corridor in southwestern Washington. The county's proximity to the Cascade subduction zone and flood-prone river systems elevate its natural disaster exposure.
Earthquakes and floods dominate hazards
Cowlitz County residents face extreme earthquake risk (97.46) and severe flood risk (88.26), which combine as the county's defining natural hazards. Wildfire (61.29) and tornado (20.55) risks are secondary but still notable concerns for residents.
Earthquake and flood insurance essential
Cowlitz County homeowners should prioritize earthquake insurance and flood coverage through the National Flood Insurance Program given the county's extreme scores in both categories. These specialized policies fall outside standard homeowners coverage and are critical for protecting your property investment.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Cowlitz County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Cowlitz County
Risk Verdict
At the 90th percentile nationally, Cowlitz 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 Cowlitz County residents.
Hazard Breakdown
Earthquake risk is Cowlitz County's dominant natural hazard, ranked at the 97th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 88th percentile nationally. Additional tracked hazards include wildfire (61th percentile), tornado (21th percentile).
Preparedness Context
With earthquake ranked as the top hazard at the 97th percentile nationally, Cowlitz County residents benefit from reviewing homeowners insurance: standard policies rarely cover earthquake damage, and separate earthquake insurance must be purchased before an event. Flood at the 88th percentile nationally is a separate hazard dimension for Cowlitz County that requires different protective strategies from earthquake preparedness. Earthquake insurance in Cowlitz County is typically offered as a separate policy — standard homeowners coverage excludes ground movement. Reviewing this gap and comparing policy options before an event is a financial preparedness step with potentially large consequences.
Regional Context
The Washington county average is 20.3 composite points below Cowlitz County's score, a gap that reflects the county's elevated position in the state's hazard distribution.
Is your household prepared for Cowlitz County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Cowlitz County, WA?
What types of natural hazards affect Cowlitz County?
How does Cowlitz County risk compare to the Washington average?
Is Cowlitz County at risk for earthquake?
How is natural disaster risk measured?
Why is Cowlitz 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.