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FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Sagadahoc County Disaster Risk

Sagadahoc County, Maine

FEMA Risk Rating

Very Low

National Percentile

23th

of 3,144 counties

State Rank

#16

of 16 (1 = highest risk)

Flood Risk

75th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 75% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 14% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 13% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 48% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 78% of US counties

Risk Overview

About Natural Disaster Risk in Sagadahoc County, Maine

Sagadahoc County is very low risk

Sagadahoc County's composite risk score of 23.35 ranks it as very low—one of the safest counties in Maine and substantially below the national average. Despite its coastal location, the county benefits from geographic protection and lower population density that reduce overall disaster vulnerability. This favorable profile makes Sagadahoc one of New England's most naturally resilient communities.

Maine's safest county overall

Sagadahoc County ranks as the lowest-risk county in Maine with its 23.35 composite score, sitting 33.4 points below the state average of 56.75. This distinction reflects minimal exposure across nearly all hazard categories, with even its highest risk (flood at 74.80) remaining manageable compared to peers. The county's exceptional safety profile makes it an outlier even among Maine's generally low-risk areas.

Dramatically safer than adjacent counties

Sagadahoc's 23.35 score is dramatically lower than neighboring Waldo County (40.62) to the north and Oxford County (65.90) to the west. Even coastal and island areas adjacent to Penobscot County (78.02) show far higher risk levels than Sagadahoc proper. The county's exceptional safety stands in stark contrast to the elevated risks found in surrounding regions.

Flood risk is the only notable concern

Flood risk at 74.80 is Sagadahoc County's most significant natural hazard, though it remains more manageable than in higher-risk Maine counties. All other hazards—earthquakes (47.93), hurricanes (77.93), tornadoes (13.10), and wildfires (14.34)—fall below state averages or into negligible ranges. The county's overall vulnerability is so low that targeted precautions for flood-prone neighborhoods constitute the primary disaster preparedness need.

Targeted flood insurance in at-risk areas

Residents in flood-prone neighborhoods should secure standalone flood insurance to cover the 74.80 flood risk, while residents on higher ground can rely on standard homeowners policies. Basic wind and hail coverage addresses minimal hurricane risk (77.93), and earthquake insurance is not economically justified given the very low composite risk. Sagadahoc's exceptional safety profile means most homeowners can prioritize flood preparedness over comprehensive multi-hazard coverage.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Sagadahoc County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    78th percentile
  2. #2
    FloodPrepare
    75th percentile
  3. #3
    EarthquakePrepare
    48th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Sagadahoc County

Risk Verdict

Sagadahoc County's natural disaster risk is among the lowest in the country, with a composite score at the 23th percentile nationally. Residents of Sagadahoc County can use the 23th percentile ranking as a baseline, while recognizing that individual properties may still lie in specific hazard zones that differ from the county average.

Hazard Breakdown

Hurricane risk is Sagadahoc County's dominant natural hazard, ranked at the 78th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 75th percentile nationally. Additional tracked hazards include earthquake (48th percentile), wildfire (14th percentile), tornado (13th percentile).

Preparedness Context

Hurricane risk is Sagadahoc County's top-ranked natural hazard at the 78th percentile nationally. The most time-sensitive preparedness step is knowing the county's evacuation zone for your address — zone maps are published by the county emergency management office. Sagadahoc County's flood exposure at the 75th percentile nationally adds a hazard layer that can persist or intensify after hurricane-force winds have passed, particularly in low-lying inland areas. Sagadahoc County's county emergency management office publishes official evacuation zone maps with zone-specific shelter locations; downloading this map and identifying your zone assignment is the single highest-value pre-season step.

Regional Context

The Maine county average exceeds Sagadahoc County's score by 33.4 composite points — placing this county in the lower-risk tier relative to its in-state peers.

Is your household prepared for Sagadahoc County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Sagadahoc County, ME?
Sagadahoc County has a FEMA National Risk Index rating of Very Low, placing it in the 23th 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 Sagadahoc County?
Sagadahoc County is evaluated for five major natural hazard types: hurricane (78th percentile), flooding (75th percentile), earthquake (48th percentile), wildfire (14th percentile), tornado (13th percentile). The highest-risk hazard is hurricane at the 78th 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 Sagadahoc County risk compare to the Maine average?
Sagadahoc County's composite risk percentile is 23th, compared to the Maine state average of 57th percentile. The state's overall risk rating is Relatively Low. This means Sagadahoc County faces lower natural disaster risk than the typical county in Maine.
Is Sagadahoc County at risk for hurricane?
Yes, Sagadahoc County's hurricane risk is at the 78th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Sagadahoc County is at the 75th 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.
Is Sagadahoc County a safe place to live?
Sagadahoc County's composite risk score of 23th percentile is below the Maine state average of 57th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is hurricane at the 78th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, 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.