Franklin County Flag

Franklin County

State:
Massachusetts
County Seat:
Greenfield

Franklin County's 2026 population is estimated at 70,893, reflecting a 0.02% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Franklin County is the 12th largest county in Massachusetts. The 2010 population was 71,372 and has grown -0.67% since 2010.

70,893
Total Population
101
Population Density (mi²)
12
Population Rank (State)
11 0.02%
Annual Population Growth

Franklin County Population

Demographics

Economics and Income Statistics