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

Maine Disaster Risk

Natural disaster risk data for all 16 counties.

Avg FEMA Rating

Relatively Low

Avg Percentile

57th

Counties with Data

of 16 total

County risk atlas

Maine hazard exposure by county

A compact 2.5D surface of FEMA National Risk Index percentiles. Toggle composite, flood, wildfire, hurricane, tornado, and earthquake risk to see which counties carry the highest relative exposure without loading the full national explorer dataset.

Counties

16/16

Avg composite

57th

Risk layers

Highest Risk Counties

York County

Relatively Moderate

81th percentile

Aroostook County

Relatively Low

80th percentile

Penobscot County

Relatively Low

78th percentile

Cumberland County

Relatively Low

77th percentile

Kennebec County

Relatively Low

75th percentile

Lowest Risk Counties

Sagadahoc County

Very Low

23th percentile

Knox County

Very Low

29th percentile

Lincoln County

Very Low

32th percentile

Waldo County

Very Low

41th percentile

Franklin County

Relatively Low

44th percentile

All Maine Counties

County	Percentile	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
York County	81th	Relatively Moderate	86.6	56.3	46.5	83.8
Aroostook County	80th	Relatively Low	76.1	26.2	15.7	77.7
Penobscot County	78th	Relatively Low	83.0	29.3	32.3	79.1
Cumberland County	77th	Relatively Low	78.4	38.9	25.5	81.1
Kennebec County	75th	Relatively Low	80.1	33.5	25.9	76.0
Somerset County	68th	Relatively Low	61.8	22.1	16.3	59.4
Oxford County	66th	Relatively Low	73.3	27.2	16.7	60.3
Androscoggin County	59th	Relatively Low	61.6	24.8	19.8	74.9
Hancock County	55th	Relatively Low	77.0	10.8	15.8	51.2
Piscataquis County	52th	Relatively Low	35.2	9.2	8.9	40.6
Washington County	48th	Relatively Low	74.6	21.8	11.0	46.7
Franklin County	44th	Relatively Low	53.0	16.0	12.4	45.8
Waldo County	41th	Very Low	58.8	17.6	15.3	42.7
Lincoln County	32th	Very Low	69.8	18.7	14.9	47.1
Knox County	29th	Very Low	69.2	16.8	12.8	45.9
Sagadahoc County	23th	Very Low	74.8	14.3	13.1	47.9

Frequently Asked Questions

Which county in Maine has the highest natural disaster risk?

York County has the highest natural disaster risk in Maine, rated Relatively Moderate (81th percentile nationally), based on FEMA National Risk Index data.

Which county in Maine is the safest from natural disasters?

Sagadahoc County has the lowest natural disaster risk in Maine, rated Very Low (23th percentile nationally), based on FEMA NRI data.

What natural disasters are most common in Maine?

Maine counties face varying levels of risk from floods, wildfires, tornadoes, earthquakes, and hurricanes. The FEMA National Risk Index scores each county across 18 hazard types. See individual county pages for detailed hazard breakdowns.

How is natural disaster risk measured by county?

The FEMA National Risk Index (NRI) measures natural disaster risk using expected annual loss, social vulnerability, and community resilience. Scores are normalized nationally, with ratings from Very Low to Very High across 18 natural hazard types.

Prepare your household for natural disasters

FEMA's Ready.gov provides county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

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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