Dauphin County Flag

Dauphin County

State:
Pennsylvania
County Seat:
Harrisburg

Dauphin County's estimated 2026 population is 297,315 with a growth rate of 0.73% 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 10.82% since that time.

297,315
Total Population
566
Population Density (mi²)
14
Population Rank (State)
2.1K 0.73%
Annual Population Growth

Dauphin County Population

Demographics

Economics and Income Statistics