What Is The Population Of Philadelphia 2024 By County. These are philadelphia county, which is coterminous with the city of philadelphia and has a population of 1,574,765 (even though it is the second smallest county in the state by land. Philadelphia is a city located in delaware county pennsylvania.

Usafacts uses census data to break down the population of philadelphia county by race,. Quickfacts provides statistics for all states and counties.