
King Prussia
- County:
- Chester County
- County Seat:
- No
- Area (mi²):
- 8.495
- State:
- Pennsylvania
King Prussia is a CDP located in Chester County, Pennsylvania. King Prussia has a 2025 population of 25,545. King Prussia is currently growing at a rate of 1.49% annually and its population has increased by 15.97% since the most recent census, which recorded a population of 22,028 in 2020.
The average household income in King Prussia is $130,757 with a poverty rate of 3.93%. The median age in King Prussia is 36.5 years: 35.6 years for males, and 38.3 years for females.