Suffolk County Flag

Suffolk County

State:
Massachusetts
County Seat:

Suffolk County's estimated 2025 population is 767,651 with a growth rate of -0.05% in the past year according to the most recent United States census data. Suffolk County is the 4th largest county in Massachusetts. The 2010 population was 725,786 and has seen a growth of 5.77% since that time.

767,651
Total Population
13,235
Population Density (mi²)
4
Population Rank (State)
-387 -0.05%
Annual Population Growth

Suffolk County Population

Demographics

Economics and Income Statistics