Kennebec County Flag

Kennebec County

State:
Maine
County Seat:
Augusta

Kennebec County's estimated 2026 population is 129,511 with a growth rate of 0.41% in the past year according to the most recent United States census data. Kennebec County is the 4th largest county in Maine. The 2010 population was 122,074 and has seen a growth of 6.09% since that time.

129,511
Total Population
149
Population Density (mi²)
4
Population Rank (State)
525 0.41%
Annual Population Growth

Kennebec County Population

Demographics

Economics and Income Statistics