Ionia, Michigan

Ionia, Michigan
Aerial photo of Ionia taken November 2007
Location of Ionia, Michigan
Coordinates: 42°58′38″N 85°04′22″W / 42.97722°N 85.07278°W / 42.97722; -85.07278
CountryUnited States
StateMichigan
CountyIonia
Area
  Total
5.54 sq mi (14.36 km2)
  Land5.41 sq mi (14.02 km2)
  Water0.13 sq mi (0.34 km2)
Elevation
637 ft (194 m)
Population
 (2020)
  Total
13,378
  Density2,472.37/sq mi (954.51/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP code
48846
Area code616
FIPS code26-40860
GNIS feature ID1626521
Websitehttp://www.ci.ionia.mi.us/

Ionia (/ˈnjə/ eye-OH-nyə) is the largest city in, and the county seat of, Ionia County, Michigan, United States. The population was 13,378 at the 2020 census. Every July it hosts what is said to be the world's largest free-admission fair, the Ionia Free Fair. The city is mostly within Ionia Township, with small portion extending into Easton Township and Berlin Township, but is politically autonomous of the townships. The city is named after Ionia, a historic region in Greece.