10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Iron Mountain | 1 | 7,529 | 7,503 | 0.07% | 998 | 7.54 | City |
| Breitung charter township | 2 | 5,903 | 5,837 | 0.25% | 92 | 64.10 | Township |
| Kingsford | 3 | 5,135 | 5,132 | 0.02% | 1,189 | 4.32 | City |
| Norway | 4 | 2,842 | 2,829 | 0.11% | 300 | 9.46 | City |
| Norway township | 5 | 1,541 | 1,531 | 0.2% | 18 | 87.78 | Township |
| Quinnesec | 6 | 1,280 | 1,203 | 0.47% | 849 | 1.51 | CDP |
| Sagola township | 7 | 1,067 | 1,057 | 0.28% | 7 | 159.60 | Township |
| Waucedah township | 8 | 808 | 804 | 0.12% | 9 | 88.51 | Township |
| Felch township | 9 | 692 | 684 | 0.29% | 5 | 142.72 | Township |
| Breen township | 10 | 474 | 470 | 0.21% | 5 | 88.67 | Township |
Iron Mountain is the largest city in Dickinson County, with a population of 7,529.
Breen township is the smallest city in Dickinson County.
There are 10 cities in Dickinson County, Michigan.