Cumberland County Flag

Cumberland County

State:
Pennsylvania
County Seat:
Carlisle

Cumberland County's estimated 2026 population is 279,884 with a growth rate of 0.94% in the past year according to the most recent United States census data. Cumberland County is the 15th largest county in Pennsylvania. The 2010 population was 235,903 and has seen a growth of 18.64% since that time.

279,884
Total Population
514
Population Density (mi²)
15
Population Rank (State)
2.6K 0.94%
Annual Population Growth

Cumberland County Population

Demographics

Economics and Income Statistics