Norfolk County Flag

Norfolk County

State:
Massachusetts
County Seat:
Dedham

Norfolk County's estimated 2026 population is 741,897 with a growth rate of 0.29% in the past year according to the most recent United States census data. Norfolk County is the 5th largest county in Massachusetts. The 2010 population was 673,059 and has seen a growth of 10.23% since that time.

741,897
Total Population
1,873
Population Density (mi²)
5
Population Rank (State)
2.1K 0.29%
Annual Population Growth

Norfolk County Population

Demographics

Economics and Income Statistics