Keweenaw County, Michigan
County seat: Eagle River · Population 2,186 (2025) · 540 sq mi
Keweenaw County is the 83rd most populous of Michigan's 83 counties, with 2,186 people (2025 estimate). Its county seat is Eagle River. It is part of the Upper Peninsula (Region 1) region, one of the 10 Michigan prosperity regions. The map shows its 1 city or town and the 5 neighboring counties.
Keweenaw County facts
- County seat
- Eagle River
- Population (2025 estimate)
- 2,186 +6.8% since 2020
- Land area
- 540 sq mi 63rd largest of 83
- Water area
- 5,426 sq mi
- Population density
- 4 per sq mi
- Established
- 1861
- Largest city
- Allouez 1,525
- Median household income
- $52,583
- Cities and towns
- 1 plus 5 CDPs
- ZIP codes
- 6
- Time zone
- Eastern
- FIPS code
- 26083
Cities and towns in Keweenaw County
Keweenaw County has 1 incorporated place. Populations count the people living inside Keweenaw County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Ahmeek | Village | 120 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Mohawk | 264 | |
| Copper Harbor | 163 | |
| Eagle Harbor | 110 | |
| Fulton | 94 | |
| Eagle River | 83 |
ZIP codes in Keweenaw County
6 ZIP codes reach into Keweenaw County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 49805 also Houghton County
- 49901
- 49913 also Houghton County
- 49918
- 49945 also Houghton County
- 49950
Population of Keweenaw County, 2020–2025
Keweenaw County grew by 140 people (+6.8%) between April 2020 and July 2025: 67 more deaths than births and a net gain of 207 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 2,059 |
| 2021 | 2,107 |
| 2022 | 2,150 |
| 2023 | 2,181 |
| 2024 | 2,165 |
| 2025 | 2,186 |
Neighboring counties
- Houghton County southwest · 37,842 people
- Marquette County southeast · 68,064 people
- Alger County southeast · 8,641 people
- Ontonagon County southwest · 5,823 people
- Cook County, Minnesota west · 5,522 people
Printable Keweenaw 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) (135 KB)
- PNG (2400 px) (90 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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