Ionia County Flag

Ionia County

State:
Michigan
County Seat:
Ionia

Ionia County's estimated 2025 population is 65,114 with a growth rate of -0.87% in the past year according to the most recent United States census data. Ionia County is the 30th largest county in Michigan. The 2010 population was 63,847 and has seen a growth of 1.98% since that time.

65,114
Total Population
114
Population Density (mi²)
30
Population Rank (State)
-574 -0.87%
Annual Population Growth

Ionia County Population

Demographics

Economics and Income Statistics