How many people live in ?

Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 1.57 million people living in Philadelphia County, PA. That makes Philadelphia County the 26th-most populous county in the US. It is also the largest in Pennsylvania, accounting for 12.1% of the state’s population.

1.57M

population of Philadelphia County, PA (2024)

12.1%

County share of the Pennsylvania population (2024)

About 1.57 million people lived in Philadelphia County, PA in 2024.

Population estimates, 2000–2024

What are Philadelphia County, PA’s age demographics?

About 242,500 Philadelphia County, PA residents are aged 65 and older in 2024. That represents 15.4% of its population. For comparison, the age group represents 20.4% of Pennsylvania’s population and 18% in the US overall.
Another 327,000 Philadelphia County residents, or 20.8% of the population, were children under 18. For comparison, the age group represents 20.1% of Pennsylvania’s population and 21.6% in the US overall.

A higher share of Philadelphia County, PA's population is aged 25–44 than the US as a whole.

Population estimates by age group, (2024)

What are Philadelphia County, PA’s racial and ethnic demographics?

Non-Hispanic Black or African American residents make up 38.7% of the Philadelphia County, PA population, higher than the national share of 12.6%. Philadelphia County, PA also has a larger share of people identifying as non-Hispanic Asian (8.5%) than the US overall (6.5%).
In contrast, Philadelphia County’s non-Hispanic white population accounts for 33.8%, below the 57.5% nationwide, and the Hispanic population makes up 16.4% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.

Philadelphia County, PA has a higher share of a non-Hispanic Black or African American population than Pennsylvania as a whole.

Population estimates by race and ethnicity, (2024)

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.