
Lawrence County
- State:
- Pennsylvania
- County Seat:
- New Castle
Lawrence County's estimated 2025 population is 83,792 with a growth rate of -0.4% in the past year according to the most recent United States census data. Lawrence County is the 33rd largest county in Pennsylvania. The 2010 population was 91,016 and has seen a growth of -7.94% since that time.