Lancaster County Flag

Lancaster County

State:
Pennsylvania
County Seat:
Lancaster

Lancaster County's estimated 2025 population is 562,447 with a growth rate of 0.34% in the past year according to the most recent United States census data. Lancaster County is the 6th largest county in Pennsylvania. The 2010 population was 520,325 and has seen a growth of 8.1% since that time.

562,447
Total Population
596
Population Density (mi²)
6
Population Rank (State)
1.9K 0.34%
Annual Population Growth

Lancaster County Population

Demographics

Economics and Income Statistics