Dauphin County Flag

Dauphin County

State:
Pennsylvania
County Seat:
Harrisburg

Dauphin County's estimated 2025 population is 290,328 with a growth rate of 0.19% in the past year according to the most recent United States census data. Dauphin County is the 14th largest county in Pennsylvania. The 2010 population was 268,289 and has seen a growth of 8.21% since that time.

290,328
Total Population
553
Population Density (mi²)
14
Population Rank (State)
547 0.19%
Annual Population Growth

Dauphin County Population

Demographics

Economics and Income Statistics