Ionia
City in Ionia County, Michigan

Ionia is a city in Ionia County, Michigan, with 13,378 residents (2020 Census). It sits at 715 ft (218 m) above sea level. The nearest town is Lyons, 6.5 miles E.
- 13,378residents (2020 Census)
- 715 ftelevation · 218 m
- 5.6 sq miland area · 14.5 km²
- 2,391 / sq mipopulation density
- 48846ZIP code
About Ionia
Ionia ( 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, and was estimated at 12,265 in 2024. 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.
Text: Wikipedia · CC BY-SA 4.0
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Living in Ionia
- Median household income
- $63,978
- Median home value
- $164,800
- Median rent
- $852/mo
- Median age
- 36.6
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Map of Ionia
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Ionia Street View
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Open in Google Maps ›Ionia, MI population
Ionia had 13,378 residents in the 2020 Census.
| 2020 Census | 13,378 |
|---|---|
| Density | 2,391 per sq mi (923 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Ionia at a glance
| State | Michigan (MI) |
|---|---|
| County | Ionia County |
| Type | City |
| Population | 13,378 (2020) |
| Land area | 5.60 sq mi (14.5 km²) |
| Water area | 0.14 sq mi (0.37 km²) |
| Elevation | 715 ft (218 m) |
| Coordinates | 42.9768° N, 85.0746° W |
| ZIP code | 48846 |
| Official website | ci.ionia.mi.us |
| Census code (GEOID) | 2640860 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Ionia
- Lyons6.5 mi E
- Muir7.2 mi E
- Saranac7.6 mi SW
- Palo10.3 mi NE
- Belding11.5 mi NW
- Portland11.6 mi SE
- Pewamo11.6 mi E
- Clarksville12.6 mi SW
- Lake Odessa13.8 mi S
- Lowell14.1 mi W
- Hubbardston14.3 mi NE
- Westphalia14.3 mi E
Straight-line distance between town centers.
Frequently asked questions about Ionia
What county is Ionia in?
Ionia is in Ionia County, Michigan.
What is the population of Ionia, MI?
13,378 people lived in Ionia at the 2020 Census.
What is the ZIP code of Ionia, MI?
The ZIP code of Ionia is 48846.
What is the elevation of Ionia?
715 feet (218 m) above sea level.
What towns are near Ionia?
Lyons (6.5 mi), Muir (7.2 mi), Saranac (7.6 mi), Palo (10.3 mi), Belding (11.5 mi).
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