
Philadelphia
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 0.757
- State:
- Missouri
Philadelphia is a CDP located in Marion County, Missouri. Philadelphia has a 2025 population of 378. Philadelphia is currently growing at a rate of 7.39% annually and its population has increased by 103.23% since the most recent census, which recorded a population of 186 in 2020.
The average household income in Philadelphia is $58,114 with a poverty rate of 25.6%. The median age in Philadelphia is 31 years: 31 years for males, and 31 years for females.