Calhoun County, Michigan
County seat: Marshall · Population 133,408 (2025) · 706 sq mi
Calhoun County is the 17th most populous of Michigan's 83 counties, with 133,408 people (2025 estimate). Its county seat is Marshall. It is part of the Southwest (Region 8) region, one of the 10 Michigan prosperity regions. The map shows its 9 cities and towns and the 7 neighboring counties.
Calhoun County facts
- County seat
- Marshall
- Population (2025 estimate)
- 133,408 −0.7% since 2020
- Land area
- 706 sq mi 26th largest of 83
- Water area
- 12 sq mi
- Population density
- 189 per sq mi
- Established
- 1829
- Same name
- One of 11 Calhoun Counties in the US
- Named after
- John C. Calhoun vice president of the United States from 1825 to 1832 (1782–1850)
- Largest city
- Battle Creek 52,021
- Median household income
- $63,177
- Cities and towns
- 9 plus 2 CDPs
- ZIP codes
- 22
- Time zone
- Eastern
- FIPS code
- 26025
Cities and towns in Calhoun County
Calhoun County has 9 incorporated cities, towns and villages. Populations count the people living inside Calhoun County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Battle Creek | City | 52,021 | |
| Albion | City | 7,474 | |
| Marshall (county seat) | City | 6,800 | |
| Springfield | City | 5,246 | |
| Homer | Village | 1,603 | |
| Athens | Village | 952 | |
| Tekonsha | Village | 722 | |
| Burlington | Village | 306 | |
| Union City | Village | 46 | Branch County |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Level Park-Oak Park | 3,488 | |
| Brownlee Park | 1,661 |
ZIP codes in Calhoun County
22 ZIP codes reach into Calhoun County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 48813 also Eaton County
- 49011 also Branch and St. Joseph counties
- 49012 also Kalamazoo County
- 49014
- 49015 also Kalamazoo County
- 49017 also Barry County
- 49021 also Eaton and Barry counties
- 49029
- 49033
- 49034 also Kalamazoo County
- 49037
- 49051
- 49052 also Kalamazoo County
- 49068
- 49076 also Eaton County
- 49092 also Branch County
- 49094 also Branch County
- 49224 also Jackson County
- 49237 also Jackson County
- 49245 also Branch and Jackson counties
- 49252 also Hillsdale, Branch and Jackson counties
- 49284 also Jackson and Eaton counties
Population of Calhoun County, 2020–2025
Calhoun County shrank by 895 people (−0.7%) between April 2020 and July 2025: 1,885 more deaths than births and a net gain of 961 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 134,198 |
| 2021 | 133,907 |
| 2022 | 133,439 |
| 2023 | 133,331 |
| 2024 | 133,611 |
| 2025 | 133,408 |
Neighboring counties
- Jackson County east · 159,552 people
- Kalamazoo County west · 263,795 people
- Branch County south · 45,993 people
- Eaton County north · 109,581 people
- Barry County northwest · 63,991 people
- Hillsdale County southeast · 45,738 people
- St. Joseph County southwest · 60,968 people
Printable Calhoun County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (158 KB)
- PNG (2400 px) (72 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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