riskbycounty
FEMA National Risk Index

Somerset County Disaster Risk

Somerset County, Maine

FEMA Risk Rating

Relatively Low

National Percentile

68th

of 3,144 counties

State Rank

#6

of 16 (1 = highest risk)

Flood Risk

62th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 62% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 22% 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 Low

Higher than 59% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 86% of US counties

Risk Advisory: Somerset County

Risk Verdict

Somerset County shows a relatively low overall disaster risk profile, scoring in the 68th percentile nationally. The county faces moderate hazard exposure relative to other U.S. counties. Standard emergency preparedness is recommended, with attention to the specific hazards that dominate locally.

Hazard Breakdown

Hurricane risk is the dominant hazard for Somerset County, scoring in the 86th percentile nationally. It is followed by flood risk at the 62th percentile. Additional hazards include earthquake (59th), wildfire (22th), tornado (16th).

Preparedness Context

With hurricane risk as the top concern, Somerset County residents should know your evacuation route, stockpile supplies for at least 72 hours, and review your homeowners and flood insurance policies annually. Secondary risks such as flood also warrant attention in household and community preparedness planning. FEMA recommends all households maintain at least 72 hours of food, water, and medication supplies regardless of specific hazard exposure.

Regional Context

Somerset County is significantly riskier than the average county in Maine. Its composite risk score is 11.2 points higher than the state average, meaning residents face above-average exposure to natural hazards compared to their neighbors.

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Frequently Asked Questions

What is the natural disaster risk in Somerset County, ME?
Somerset County has a FEMA National Risk Index rating of Relatively Low, placing it in the 68th 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 Somerset County?
Somerset County is evaluated for five major natural hazard types: hurricane (86th percentile), flooding (62th percentile), earthquake (59th percentile), wildfire (22th percentile), tornado (16th percentile). The highest-risk hazard is hurricane at the 86th 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 Somerset County risk compare to the Maine average?
Somerset County's composite risk percentile is 68th, compared to the Maine state average of 57th percentile. The state's overall risk rating is Relatively Low. This means Somerset County faces higher natural disaster risk than the typical county in Maine.
Is Somerset County at risk for hurricane?
Yes, Somerset County's hurricane risk is at the 86th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Somerset County is at the 62th 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 Somerset County higher risk than average?
Somerset County's composite risk score of 68th percentile is above the Maine state average of 57th percentile. This elevated risk is driven by hurricane exposure (86th 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.

Counties with Similar Risk

Oxford County

Maine

-2.0

Relatively Low

66th percentile

Kennebec County

Maine

+7.3

Relatively Low

75th percentile

Androscoggin County

Maine

-8.9

Relatively Low

59th percentile

By Logan Johnson, Founder & Data EditorUpdated Reviewed by Logan Johnson, Founder & 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.

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