Mackinac County, Michigan
County seat: St. Ignace · Population 11,236 (2025) · 1,022 sq mi
Mackinac County is the 74th most populous of Michigan's 83 counties, with 11,236 people (2025 estimate). Its county seat is St. Ignace. It is part of the Upper Peninsula (Region 1) region, one of the 10 Michigan prosperity regions. The map shows its 2 cities and towns and the 7 neighboring counties.
Mackinac County facts
- County seat
- St. Ignace
- Population (2025 estimate)
- 11,236 +3.7% since 2020
- Land area
- 1,022 sq mi 9th largest of 83
- Water area
- 1,079 sq mi
- Population density
- 11 per sq mi
- Established
- 1818
- Named after
- Straits of Mackinac strait connecting Lakes Huron and Michigan in Michigan, USA
- Largest city
- St. Ignace 2,351
- Median household income
- $63,909
- Cities and towns
- 2 plus 1 CDPs
- ZIP codes
- 15
- Time zone
- Eastern
- FIPS code
- 26097
Cities and towns in Mackinac County
Mackinac County has 2 incorporated cities, towns and villages. Populations count the people living inside Mackinac County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| St. Ignace (county seat) | City | 2,351 | |
| Mackinac Island | City | 617 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Naubinway | 103 |
ZIP codes in Mackinac County
15 ZIP codes reach into Mackinac County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 49719 also Chippewa County
- 49745
- 49757
- 49760 also Chippewa County
- 49762
- 49774 also Chippewa County
- 49775
- 49780 also Chippewa County
- 49781
- 49793 also Chippewa County
- 49820
- 49827
- 49836 also Schoolcraft County
- 49838
- 49853 also Luce County
Population of Mackinac County, 2020–2025
Mackinac County grew by 402 people (+3.7%) between April 2020 and July 2025: 452 more deaths than births and a net gain of 871 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 10,821 |
| 2021 | 10,919 |
| 2022 | 10,981 |
| 2023 | 10,922 |
| 2024 | 11,103 |
| 2025 | 11,236 |
Neighboring counties
- Chippewa County east · 36,081 people
- Charlevoix County south · 26,036 people
- Luce County northwest · 6,339 people
- Schoolcraft County west · 8,187 people
- Cheboygan County southeast · 25,793 people
- Emmet County south · 33,775 people
- Presque Isle County southeast · 13,128 people
Printable Mackinac 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) (174 KB)
- PNG (2400 px) (115 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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