Ionia County is a county located in the state of Michigan. Based on the 2010 census, the population was 63,905. The county seat is Ionia.
The Ionia County Courthouse was built by Claire Allen, a prominent southern Michigan architect.
Ionia County comprises the Ionia, MI Micropolitan Statistical Area, which is also included in the Grand Rapids-Wyoming-Muskegon, MI Combined
Statistical Area.
Ionia County is named for the ancient Greek region Ionia.
County QuickFacts: CensusBureau Quick Facts
Ionia County is named for the ancient Greek region Ionia.
Set Off: 1831
Organized: 1837
As reported by the Census Bureau, the county has a total area of 580 square miles (1,500 km2), of which 571 square miles (1,480 km2) is land and 8.7 square miles (23 km2) (1.5%) is water.
Bordering counties are as follows: