riskbycounty
FEMA National Risk Index

Aroostook County Disaster Risk

Aroostook County, Maine

FEMA Risk Rating

Relatively Low

National Percentile

80th

of 3,144 counties

State Rank

#2

of 16 (1 = highest risk)

Flood Risk

76th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 76% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 26% 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 78% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 83% of US counties

Risk Advisory: Aroostook County

Risk Verdict

Aroostook County shows a relatively low overall disaster risk profile, scoring in the 80th 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 Aroostook County, scoring in the 83th percentile nationally. It is followed by earthquake risk at the 78th percentile. Additional hazards include flood (76th), wildfire (26th), tornado (16th).

Preparedness Context

With hurricane risk as the top concern, Aroostook 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 earthquake 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

Aroostook County is significantly riskier than the average county in Maine. Its composite risk score is 23.7 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 Aroostook County, ME?
Aroostook County has a FEMA National Risk Index rating of Relatively Low, placing it in the 80th 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 Aroostook County?
Aroostook County is evaluated for five major natural hazard types: hurricane (83th percentile), earthquake (78th percentile), flooding (76th percentile), wildfire (26th percentile), tornado (16th percentile). The highest-risk hazard is hurricane at the 83th 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 Aroostook County risk compare to the Maine average?
Aroostook County's composite risk percentile is 80th, compared to the Maine state average of 57th percentile. The state's overall risk rating is Relatively Low. This means Aroostook County faces higher natural disaster risk than the typical county in Maine.
Is Aroostook County at risk for hurricane?
Yes, Aroostook County's hurricane risk is at the 83th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Aroostook County is at the 76th 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 Aroostook County higher risk than average?
Aroostook County's composite risk score of 80th percentile is above the Maine state average of 57th percentile. This elevated risk is driven by hurricane exposure (83th percentile), along with earthquake and flooding 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

York County

Maine

+1.0

Relatively Moderate

81th percentile

Penobscot County

Maine

-2.4

Relatively Low

78th percentile

Cumberland County

Maine

-3.4

Relatively Low

77th 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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