Franklin County Flag

Franklin County

State:
Massachusetts
County Seat:
Greenfield

Franklin County's estimated 2026 population is 70,485 with a growth rate of -0.3% in the past year according to the most recent United States census data. Franklin County is the 12th largest county in Massachusetts. The 2010 population was 71,372 and has seen a growth of -1.24% since that time.

70,485
Total Population
101
Population Density (mi²)
12
Population Rank (State)
-213 -0.3%
Annual Population Growth

Franklin County Population

Demographics

Economics and Income Statistics