Ionia County, Michigan
Ionia County, Michigan | |
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Ionia County Courthouse in Ionia | |
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Seal | |
Location within the U.S. state of Michigan | |
| Coordinates: 42°56′N 85°04′W / 42.94°N 85.07°W | |
| Country | United States |
| State | Michigan |
| Founded | March 2, 1831 (created) 1837 (organized) |
| Named after | 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 | |
• Estimate (2024) | 66,250 |
| 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. The county seat is Ionia. 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.