Philadelphia
- County:
- Neshoba County
- County Seat:
- Yes
- Area (mi²):
- 12.211
- State:
- Mississippi
Philadelphia is a city located in Neshoba County, Mississippi. Philadelphia has a 2026 population of 6,938. It is also the county seat of Neshoba County. Philadelphia is currently declining at a rate of -0.19% annually and its population has decreased by -2.14% since the most recent census, which recorded a population of 7,090 in 2020.