Ionia County | |
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![]() Ionia County Courthouse in Ionia | |
![]() Location within the U.S. state of Michigan | |
![]() Michigan's location within the U.S. | |
Coordinates: 42°56′N 85°04′W / 42.94°N 85.07°W | |
Country | ![]() |
State | ![]() |
Founded | March 2, 1831 (created) 1837 (organized)[1] |
Named for | Ionia |
Seat | Ionia |
Largest city | Ionia |
Area | |
• Total | 580 sq mi (1,500 km2) |
• Land | 571 sq mi (1,480 km2) |
• Water | 8.7 sq mi (23 km2) 1.5% |
Population (2020) | |
• Total | 66,804 |
• Density | 112/sq mi (43/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 2nd |
Website | ioniacounty |
Ionia County (/aɪˈoʊnjə/ eye-OH-nyə) is a county located in the U.S. state of Michigan. As of the 2020 census, the population was 66,804.[2] The county seat is Ionia.[3] The Ionia County Courthouse was designed by Claire Allen, a prominent southern Michigan architect.
Ionia County is part of the Grand Rapids-Kentwood metropolitan statistical area.