Pennsylvania Disaster Risk

Natural disaster risk data for all 67 counties.

Avg FEMA Rating

Relatively Low

Avg Percentile

67th

Counties with Data

of 67 total

Highest Risk Counties

Philadelphia County

Very High

100th percentile

Allegheny County

Relatively High

98th percentile

Montgomery County

Relatively High

97th percentile

Lancaster County

Relatively High

95th percentile

Bucks County

Relatively High

95th percentile

Lowest Risk Counties

Fulton County

Very Low

8th percentile

Sullivan County

Very Low

11th percentile

Cameron County

Very Low

13th percentile

Montour County

Very Low

15th percentile

Forest County

Very Low

20th percentile

All Pennsylvania Counties

County	Percentile	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
Philadelphia County	100th	Very High	99.6	28.7	98.7	98.3
Allegheny County	98th	Relatively High	99.2	60.4	91.2	87.9
Montgomery County	97th	Relatively High	98.2	37.3	95.6	94.2
Lancaster County	95th	Relatively High	96.9	37.2	79.8	93.5
Bucks County	95th	Relatively High	97.1	55.5	92.1	93.9
Lehigh County	94th	Relatively Moderate	95.4	30.3	87.4	89.8
Delaware County	93th	Relatively Moderate	94.4	27.7	92.5	94.5
Berks County	93th	Relatively Moderate	94.8	38.0	90.6	91.3
Chester County	92th	Relatively Moderate	94.3	30.7	88.0	90.2
Luzerne County	92th	Relatively Moderate	95.3	53.7	81.6	83.9
Dauphin County	91th	Relatively Moderate	94.8	38.9	79.8	87.3
York County	90th	Relatively Moderate	93.3	41.0	47.6	88.0
Northampton County	90th	Relatively Moderate	93.6	28.6	80.9	84.4
Lackawanna County	90th	Relatively Moderate	94.1	41.4	68.1	75.0
Westmoreland County	88th	Relatively Moderate	93.8	54.0	55.7	73.8
Cumberland County	86th	Relatively Moderate	91.1	47.6	68.2	81.9
Schuylkill County	85th	Relatively Moderate	90.8	55.6	66.2	71.9
Monroe County	85th	Relatively Moderate	88.1	51.6	65.9	73.2
Erie County	84th	Relatively Moderate	90.7	36.9	66.6	60.1
Washington County	83th	Relatively Moderate	91.4	46.1	49.8	59.3
Fayette County	82th	Relatively Moderate	90.6	45.2	68.8	60.7
Lebanon County	80th	Relatively Low	84.9	22.5	70.3	80.9
Lycoming County	80th	Relatively Low	89.0	26.9	50.4	48.3
Butler County	79th	Relatively Low	89.0	39.0	59.8	52.1
Northumberland County	79th	Relatively Low	88.3	31.3	46.9	63.7
Mercer County	78th	Relatively Low	87.9	36.4	55.3	51.5
Blair County	78th	Relatively Low	87.5	32.0	58.9	62.3
Cambria County	76th	Relatively Low	85.7	41.0	63.9	60.6
Franklin County	76th	Relatively Low	84.3	51.3	46.2	75.4
Crawford County	76th	Relatively Low	87.2	36.0	52.5	50.3
Beaver County	75th	Relatively Low	87.0	34.9	56.6	55.0
Bradford County	73th	Relatively Low	86.1	21.7	31.6	45.1
Armstrong County	69th	Relatively Low	85.1	22.0	34.2	35.2
Mifflin County	69th	Relatively Low	83.6	26.6	41.8	48.6
Bedford County	68th	Relatively Low	84.0	29.2	26.0	44.5
Centre County	68th	Relatively Low	81.2	32.5	42.8	58.2
Adams County	68th	Relatively Low	76.2	44.2	46.2	72.6
Clearfield County	67th	Relatively Low	80.6	34.3	40.7	43.4
Lawrence County	66th	Relatively Low	83.1	27.3	37.7	36.7
Pike County	66th	Relatively Low	78.8	71.9	27.8	56.1
Warren County	66th	Relatively Low	82.8	11.9	21.9	21.1
Somerset County	64th	Relatively Low	80.0	40.8	35.5	54.2
Indiana County	64th	Relatively Low	77.8	37.9	42.6	48.3
Columbia County	62th	Relatively Low	78.6	27.5	36.1	51.6
Tioga County	60th	Relatively Low	78.9	20.8	24.0	31.1
Carbon County	59th	Relatively Low	67.5	41.3	37.9	46.6
Jefferson County	58th	Relatively Low	74.5	16.4	31.2	35.4
Wayne County	56th	Relatively Low	71.3	20.1	30.4	47.6
Venango County	56th	Relatively Low	74.1	12.6	34.5	28.5
Union County	55th	Relatively Low	71.8	10.4	33.7	43.6
Greene County	55th	Relatively Low	74.3	23.4	34.7	39.0
Snyder County	54th	Relatively Low	71.2	17.7	36.9	48.7
McKean County	54th	Relatively Low	73.2	10.2	24.5	36.1
Susquehanna County	54th	Relatively Low	71.0	21.2	47.0	46.9
Perry County	53th	Relatively Low	69.5	25.0	31.6	38.7
Clinton County	52th	Relatively Low	71.3	15.2	27.3	33.0
Huntingdon County	50th	Relatively Low	68.8	22.9	27.1	41.8
Elk County	45th	Relatively Low	68.0	5.9	18.1	27.6
Wyoming County	45th	Relatively Low	69.2	21.9	20.6	35.8
Juniata County	39th	Very Low	60.3	16.5	26.9	37.8
Clarion County	30th	Very Low	52.2	16.3	28.8	32.0
Potter County	28th	Very Low	55.2	3.3	15.0	21.1
Forest County	20th	Very Low	43.5	4.8	14.0	19.6
Montour County	15th	Very Low	38.3	4.6	20.3	33.8
Cameron County	13th	Very Low	40.7	0.7	10.8	12.6
Sullivan County	11th	Very Low	37.4	6.0	12.2	24.5
Fulton County	8th	Very Low	21.5	22.8	15.5	34.2

Frequently Asked Questions

Which county in Pennsylvania has the highest natural disaster risk?

Philadelphia County has the highest natural disaster risk in Pennsylvania, rated Very High (100th percentile nationally), based on FEMA National Risk Index data.

Which county in Pennsylvania is the safest from natural disasters?

Fulton County has the lowest natural disaster risk in Pennsylvania, rated Very Low (8th percentile nationally), based on FEMA NRI data.

What natural disasters are most common in Pennsylvania?

Pennsylvania 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.

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