Linn County Disaster Risk
Linn County, Oregon
FEMA Risk Rating
Relatively Moderate
National Percentile
88th
of 3,144 counties
State Rank
#12
of 36 (1 = highest risk)
Flood Risk
86th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Moderate
Higher than 86% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Relatively Low
Higher than 58% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 16% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively High
Higher than 98% of US counties
Risk Overview
About Natural Disaster Risk in Linn County, Oregon
Linn ranks above-average for disaster risk
Linn County's composite risk score of 88.10 places it above the national average, earning a Relatively Moderate rating. The county's earthquake risk of 97.52 is exceptional by U.S. standards, rivaling seismically active regions in California and the Pacific Northwest. Flood risk of 86.26 adds a secondary but serious vulnerability.
Fifth-highest risk in Oregon
Linn ranks fifth among Oregon's 36 counties at 88.10—well above the state average of 63.43. Only Lane, Marion, Josephine, and one other county show higher composite risk scores. Linn's position reflects its Willamette Valley location, where flooding and seismic hazards intersect.
Higher risk than Lake, comparable to Lincoln
Linn (88.10) significantly exceeds nearby Lake (19.08) and nearly matches Lincoln (89.95) on composite risk. Linn's earthquake risk of 97.52 is comparable to Lincoln's 97.77, while Linn's flood risk (86.26) mirrors Lincoln's exposure. This makes Linn Oregon's inland equivalent to coastal hazard vulnerabilities.
Earthquakes and floods are primary concerns
Linn faces earthquake risk of 97.52 and flood risk of 86.26—the two dominant hazards shaping the county's risk profile. Tornado risk of 15.74 adds a tertiary but growing concern, particularly in eastern sections. Wildfire risk of 58.40 remains present but lower priority.
Add earthquake and flood coverage today
Linn County homeowners must obtain earthquake insurance given the 97.52 risk—this is essential for Willamette Valley residents. Flood insurance is equally critical, particularly for properties near rivers; the 86.26 flood risk makes it a legitimate necessity, not an optional rider. Bundle both coverages and review annually for changes in premium or coverage limits.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Linn County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Linn County
Risk Verdict
Linn County's overall risk score at the 88th percentile nationally signals meaningful exposure to multiple natural hazard types. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.
Hazard Breakdown
Earthquake risk is Linn County's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 86th percentile nationally. Additional tracked hazards include wildfire (58th percentile), tornado (16th percentile).
Preparedness Context
Linn County ranks at the 98th percentile nationally for earthquake risk. Unlike most natural hazards, earthquakes provide no advance warning; preparedness here means structural adjustments and a practiced response, not alert monitoring. Alongside earthquake exposure, Linn County's flood risk at the 86th percentile nationally reinforces the value of maintaining a household emergency supply cache usable for multiple hazard scenarios. For earthquake preparedness, Linn County's county emergency management office often maintains a list of community water supply points, Red Cross shelter locations, and post-quake assistance programs — useful resources to identify before an event occurs.
Regional Context
Compared to other Oregon counties, Linn County runs 24.7 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.
Is your household prepared for Linn County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Linn County, OR?
What types of natural hazards affect Linn County?
How does Linn County risk compare to the Oregon average?
Is Linn County at risk for earthquake?
How is natural disaster risk measured?
Why is Linn 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.