Branch County, Michigan
County seat: Coldwater · Population 45,993 (2025) · 506 sq mi
Branch County is the 37th most populous of Michigan's 83 counties, with 45,993 people (2025 estimate). Its county seat is Coldwater. It is part of the Southwest (Region 8) region, one of the 10 Michigan prosperity regions. The map shows its 5 cities and towns and the 6 neighboring counties.
Branch County facts
- County seat
- Coldwater
- Population (2025 estimate)
- 45,993 +2.5% since 2020
- Land area
- 506 sq mi 69th largest of 83
- Water area
- 13 sq mi
- Population density
- 91 per sq mi
- Established
- 1829
- Named after
- John Branch American politician (1782-1863)
- Largest city
- Coldwater 14,216
- Median household income
- $63,724
- Cities and towns
- 5
- ZIP codes
- 13
- Time zone
- Eastern
- FIPS code
- 26023
Cities and towns in Branch County
Branch County has 5 incorporated cities, towns and villages. Populations count the people living inside Branch County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Coldwater (county seat) | City | 14,216 | |
| Bronson | City | 2,316 | |
| Union City | Village | 1,680 | Calhoun County |
| Quincy | Village | 1,564 | |
| Sherwood | Village | 286 |
ZIP codes in Branch County
13 ZIP codes reach into Branch County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 49011 also Calhoun and St. Joseph counties
- 49028
- 49030 also St. Joseph County
- 49036
- 49040 also St. Joseph County
- 49082 also Hillsdale County
- 49089
- 49092 also Calhoun County
- 49094 also Calhoun County
- 49245 also Calhoun and Jackson counties
- 49252 also Hillsdale, Jackson and Calhoun counties
- 49255 also Hillsdale County
- 49274 also Hillsdale County
Population of Branch County, 2020–2025
Branch County grew by 1,123 people (+2.5%) between April 2020 and July 2025: 424 more births than deaths and a net gain of 601 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 44,877 |
| 2021 | 45,214 |
| 2022 | 44,613 |
| 2023 | 45,603 |
| 2024 | 46,024 |
| 2025 | 45,993 |
Neighboring counties
- Calhoun County north · 133,408 people
- Hillsdale County east · 45,738 people
- St. Joseph County west · 60,968 people
- Steuben County, Indiana south · 34,799 people
- LaGrange County, Indiana southwest · 41,305 people
- Kalamazoo County northwest · 263,795 people
Printable Branch 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) (137 KB)
- PNG (2400 px) (65 KB)
Paste this code to embed the map on your site:
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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