
Berks County
- State:
- Pennsylvania
- County Seat:
- Reading
Berks County's estimated 2025 population is 435,317 with a growth rate of 0.29% in the past year according to the most recent United States census data. Berks County is the 9th largest county in Pennsylvania. The 2010 population was 412,041 and has seen a growth of 5.65% since that time.