
Lycoming County
- State:
- Pennsylvania
- County Seat:
- Williamsport
Lycoming County's estimated 2025 population is 112,104 with a growth rate of -0.28% in the past year according to the most recent United States census data. Lycoming County is the 29th largest county in Pennsylvania. The 2010 population was 116,215 and has seen a growth of -3.54% since that time.