Dickinson County, Michigan
County seat: Iron Mountain · Population 25,827 (2025) · 761 sq mi
Dickinson County is the 55th most populous of Michigan's 83 counties, with 25,827 people (2025 estimate). Its county seat is Iron Mountain. It is part of the Upper Peninsula (Region 1) region, one of the 10 Michigan prosperity regions. The map shows its 3 cities and towns and the 5 neighboring counties.
Dickinson County facts
- County seat
- Iron Mountain
- Population (2025 estimate)
- 25,827 −0.5% since 2020
- Land area
- 761 sq mi 22nd largest of 83
- Water area
- 16 sq mi
- Population density
- 34 per sq mi
- Established
- 1891
- Same name
- One of 3 Dickinson Counties in the US
- Named after
- Donald M. Dickinson American politician and lawyer (1846-1917)
- Largest city
- Iron Mountain 7,469
- Median household income
- $65,156
- Cities and towns
- 3 plus 1 CDPs
- ZIP codes
- 11
- Time zone
- Central
- FIPS code
- 26043
Cities and towns in Dickinson County
Dickinson County has 3 incorporated cities, towns and villages. Populations count the people living inside Dickinson County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Iron Mountain (county seat) | City | 7,469 | |
| Kingsford | City | 5,096 | |
| Norway | City | 2,815 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Quinnesec | 892 |
ZIP codes in Dickinson County
11 ZIP codes reach into Dickinson County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 49801
- 49802
- 49815
- 49831 also Marquette County
- 49834
- 49852
- 49870
- 49876
- 49877
- 49881
- 49892 also Menominee County
Population of Dickinson County, 2020–2025
Dickinson County shrank by 118 people (−0.5%) between April 2020 and July 2025: 695 more deaths than births and a net gain of 564 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 25,896 |
| 2021 | 25,815 |
| 2022 | 25,959 |
| 2023 | 26,013 |
| 2024 | 25,918 |
| 2025 | 25,827 |
Neighboring counties
- Marquette County north · 68,064 people
- Menominee County southeast · 22,941 people
- Iron County west · 11,757 people
- Florence County, Wisconsin west · 4,748 people
- Marinette County, Wisconsin south · 42,574 people
Printable Dickinson 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) (134 KB)
- PNG (2400 px) (79 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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