Cities in Philadelphia County, Pennsylvania by Population (2024)

There is 1 city in Philadelphia County, Pennsylvania.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
2024 Population
Philadelphia1,533,916

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Philadelphia County, Pennsylvania?

Philadelphia is the largest city in Philadelphia County.

What is the smallest city in Philadelphia County, Pennsylvania?

Philadelphia is the smallest city in Philadelphia County.

How many cities are in Philadelphia County?

There is 1 city in Philadelphia County, Pennsylvania.

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