Allegan County Flag

Allegan County

State:
Michigan
County Seat:
Allegan

Allegan County's estimated 2025 population is 123,237 with a growth rate of 0.53% in the past year according to the most recent United States census data. Allegan County is the 18th largest county in Michigan. The 2010 population was 111,521 and has seen a growth of 10.51% since that time.

123,237
Total Population
149
Population Density (mi²)
18
Population Rank (State)
649 0.53%
Annual Population Growth

Allegan County Population

Demographics

Economics and Income Statistics