Flood Risk by County in Pennsylvania

Pennsylvania: 67 counties covered

Across 67 Pennsylvania counties with a FEMA flood score, the average national percentile is 79.6, but that average hides real spread between counties, which is why each one gets its own page rather than a single statewide number.

• Philadelphia County, 99.6th percentile, Very High
• Allegheny County, 99.2th percentile, Very High
• Montgomery County, 98.2th percentile, Relatively High
• Bucks County, 97.1th percentile, Relatively High
• Delaware County, 94.4th percentile, Relatively High
• Lancaster County, 96.9th percentile, Relatively High
• Chester County, 94.3th percentile, Relatively High
• York County, 93.3th percentile, Relatively High
• Berks County, 94.8th percentile, Relatively High
• Lehigh County, 95.4th percentile, Relatively High
• Westmoreland County, 93.8th percentile, Relatively High
• Luzerne County, 95.3th percentile, Relatively High
• Northampton County, 93.6th percentile, Relatively High
• Dauphin County, 94.8th percentile, Relatively High
• Cumberland County, 91.1th percentile, Relatively Moderate
• Erie County, 90.7th percentile, Relatively Moderate
• Lackawanna County, 94.1th percentile, Relatively High
• Washington County, 91.4th percentile, Relatively Moderate
• Butler County, 89th percentile, Relatively Moderate
• Monroe County, 88.1th percentile, Relatively Moderate
• Beaver County, 87th percentile, Relatively Moderate
• Centre County, 81.2th percentile, Relatively Moderate
• Franklin County, 84.3th percentile, Relatively Moderate
• Lebanon County, 84.9th percentile, Relatively Moderate
• Schuylkill County, 90.8th percentile, Relatively Moderate
• Cambria County, 85.7th percentile, Relatively Moderate
• Fayette County, 90.6th percentile, Relatively Moderate
• Blair County, 87.5th percentile, Relatively Moderate
• Lycoming County, 89th percentile, Relatively Moderate
• Mercer County, 87.9th percentile, Relatively Moderate
• Adams County, 76.2th percentile, Relatively Moderate
• Northumberland County, 88.3th percentile, Relatively Moderate
• Lawrence County, 83.1th percentile, Relatively Moderate
• Indiana County, 77.8th percentile, Relatively Moderate
• Crawford County, 87.2th percentile, Relatively Moderate
• Clearfield County, 80.6th percentile, Relatively Moderate
• Somerset County, 80th percentile, Relatively Moderate
• Columbia County, 78.6th percentile, Relatively Moderate
• Carbon County, 67.5th percentile, Relatively Low
• Armstrong County, 85.1th percentile, Relatively Moderate
• Pike County, 78.8th percentile, Relatively Moderate
• Bradford County, 86.1th percentile, Relatively Moderate
• Wayne County, 71.3th percentile, Relatively Low
• Venango County, 74.1th percentile, Relatively Moderate
• Bedford County, 84th percentile, Relatively Moderate
• Perry County, 69.5th percentile, Relatively Low
• Mifflin County, 83.6th percentile, Relatively Moderate
• Jefferson County, 74.5th percentile, Relatively Moderate
• Huntingdon County, 68.8th percentile, Relatively Low
• Union County, 71.8th percentile, Relatively Low
• Tioga County, 78.9th percentile, Relatively Moderate
• Snyder County, 71.2th percentile, Relatively Low
• McKean County, 73.2th percentile, Relatively Moderate
• Susquehanna County, 71th percentile, Relatively Low
• Clinton County, 71.3th percentile, Relatively Low
• Warren County, 82.8th percentile, Relatively Moderate
• Clarion County, 52.2th percentile, Relatively Low
• Greene County, 74.3th percentile, Relatively Moderate
• Elk County, 68th percentile, Relatively Low
• Wyoming County, 69.2th percentile, Relatively Low
• Juniata County, 60.3th percentile, Relatively Low
• Montour County, 38.3th percentile, Relatively Low
• Potter County, 55.2th percentile, Relatively Low
• Fulton County, 21.5th percentile, Very Low
• Forest County, 43.5th percentile, Relatively Low
• Sullivan County, 37.4th percentile, Relatively Low
• Cameron County, 40.7th percentile, Relatively Low