Dorchester County Flag

Dorchester County

County Seat:

Dorchester County's estimated 2025 population is 177,399 with a growth rate of 2.18% in the past year according to the most recent United States census data. Dorchester County is the 12th largest county in South Carolina. The 2010 population was 137,005 and has seen a growth of 29.48% since that time.

177,399
Total Population
312
Population Density (mi²)
12
Population Rank (State)
3.8K 2.18%
Annual Population Growth

Dorchester County Population

Demographics

Economics and Income Statistics