
Bucks County
- State:
- Pennsylvania
- County Seat:
- Doylestown
Bucks County's estimated 2025 population is 646,838 with a growth rate of 0.07% in the past year according to the most recent United States census data. Bucks County is the 4th largest county in Pennsylvania. The 2010 population was 625,572 and has seen a growth of 3.4% since that time.