Alpena County, Michigan
County seat: Alpena · Population 28,853 (2025) · 572 sq mi
Alpena County is the 50th most populous of Michigan's 83 counties, with 28,853 people (2025 estimate). Its county seat is Alpena. It is part of the Northeast (Region 3) region, one of the 10 Michigan prosperity regions. The map shows its 2 cities and towns and the 4 neighboring counties.
Alpena County facts
- County seat
- Alpena
- Population (2025 estimate)
- 28,853 −0.2% since 2020
- Land area
- 572 sq mi 39th largest of 83
- Water area
- 1,123 sq mi
- Population density
- 51 per sq mi
- Established
- 1840
- Largest city
- Alpena 10,088
- Median household income
- $53,950
- Cities and towns
- 2 plus 1 CDPs
- ZIP codes
- 8
- Time zone
- Eastern
- FIPS code
- 26007
Cities and towns in Alpena County
Alpena County has 2 incorporated cities, towns and villages. Populations count the people living inside Alpena County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Alpena (county seat) | City | 10,088 | |
| Hillman | Village | 2 | Montmorency County |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Ossineke | 1,019 |
ZIP codes in Alpena County
8 ZIP codes reach into Alpena County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 48762 also Alcona County
- 49707 also Presque Isle County
- 49744
- 49746 also Montmorency County
- 49747 also Alcona County
- 49753
- 49766
- 49776 also Presque Isle County
Population of Alpena County, 2020–2025
Alpena County shrank by 63 people (−0.2%) between April 2020 and July 2025: 975 more deaths than births and a net gain of 912 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 28,891 |
| 2021 | 28,953 |
| 2022 | 28,827 |
| 2023 | 28,868 |
| 2024 | 28,883 |
| 2025 | 28,853 |
Neighboring counties
- Alcona County south · 10,556 people
- Presque Isle County north · 13,128 people
- Montmorency County west · 9,842 people
- Oscoda County southwest · 8,723 people
Printable Alpena 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) (128 KB)
- PNG (2400 px) (77 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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