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

Kennebec County Disaster Risk

Kennebec County, Maine

FEMA Risk Rating

Relatively Low

National Percentile

75th

of 3,144 counties

State Rank

#5

of 16 (1 = highest risk)

Flood Risk

80th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 80% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 33% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 26% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 76% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 88% of US counties

Risk Overview

About Natural Disaster Risk in Kennebec County, Maine

Kennebec faces multiple moderate threats

Kennebec County's composite risk score of 75.22 places it well above the national average, with significant exposure across four major hazard types. Hurricane (87.65), flood (80.09), and earthquake (76.05) risks all exceed 75, creating compound vulnerability.

Third-riskiest in Maine

At 75.22, Kennebec ranks third among Maine's 16 counties, just below Aroostook (80.41) and Cumberland (77.00), and 32% above state average. Home to Maine's capital (Augusta), Kennebec's inland location and river systems drive flood exposure comparable to coastal counties.

Elevated risk for inland county

Kennebec's 75.22 score approaches coastal county levels, far exceeding neighboring Franklin (43.64) and Somerset counties. The difference reflects Kennebec's dense development along the Kennebec River and exposure to Atlantic storm systems.

Flood, hurricane, and earthquake threats

Flood risk leads at 80.09, particularly threatening to river-valley communities, while hurricane exposure (87.65) extends surprisingly far inland through atmospheric rivers and nor'easters. Earthquake risk (76.05) adds a third major threat, while tornado (25.89) and wildfire (33.49) remain secondary concerns.

Comprehensive coverage is critical

Kennebec's high flood risk (80.09) makes flood insurance essential, even for homes outside designated flood zones—inland flooding from rivers is real. Bundle hurricane, flood, and earthquake coverage to address your three biggest threats; your county's risk profile justifies the additional premium investment.

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

Preparedness Guide

What to Prepare for in Kennebec County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    88th percentile
  2. #2
    FloodPrepare
    80th percentile
  3. #3
    EarthquakePrepare
    76th percentile

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

Risk Advisory: Kennebec County

Risk Verdict

Kennebec County ranks at the 75th percentile nationally for natural disaster risk — below the median for U.S. counties. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.

Hazard Breakdown

Hurricane risk is Kennebec County's dominant natural hazard, ranked at the 88th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 80th percentile nationally. Additional tracked hazards include earthquake (76th percentile), wildfire (33th percentile), tornado (26th percentile).

Preparedness Context

Kennebec County ranks at the 88th percentile nationally for hurricane risk. For coastal counties, wind-resistant shutters or impact-rated windows represent the highest single structural investment for reducing property damage. Kennebec County's flood exposure at the 80th percentile nationally adds a hazard layer that can persist or intensify after hurricane-force winds have passed, particularly in low-lying inland areas. For extended post-storm outages common in Kennebec County's hurricane zone, a portable generator (operated outdoors only) and a supply of non-perishable food for at least seven days provides meaningful household resilience.

Regional Context

Compared to other Maine counties, Kennebec County runs 18.5 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.

Is your household prepared for Kennebec 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 Kennebec County, ME?
Kennebec County has a FEMA National Risk Index rating of Relatively Low, placing it in the 75th 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 Kennebec County?
Kennebec County is evaluated for five major natural hazard types: hurricane (88th percentile), flooding (80th percentile), earthquake (76th percentile), wildfire (33th percentile), tornado (26th percentile). The highest-risk hazard is hurricane at the 88th 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 Kennebec County risk compare to the Maine average?
Kennebec County's composite risk percentile is 75th, compared to the Maine state average of 57th percentile. The state's overall risk rating is Relatively Low. This means Kennebec County faces higher natural disaster risk than the typical county in Maine.
Is Kennebec County at risk for hurricane?
Yes, Kennebec County's hurricane risk is at the 88th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Kennebec County is at the 80th 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 Kennebec County higher risk than average?
Kennebec County's composite risk score of 75th percentile is above the Maine state average of 57th percentile. This elevated risk is driven by hurricane exposure (88th 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.
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.