10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bagley township | 1 | 6,140 | 5,879 | 0.82% | 222 | 27.68 | Township |
| Gaylord | 2 | 4,429 | 4,291 | 0.64% | 854 | 5.19 | City |
| Otsego Lake township | 3 | 2,965 | 2,859 | 0.68% | 91 | 32.72 | Township |
| Hayes township | 4 | 2,853 | 2,732 | 0.81% | 41 | 69.17 | Township |
| Livingston township | 5 | 2,756 | 2,657 | 0.66% | 82 | 33.81 | Township |
| Elmira township | 6 | 1,782 | 1,717 | 0.68% | 50 | 35.84 | Township |
| Corwith township | 7 | 1,780 | 1,711 | 0.74% | 17 | 107.48 | Township |
| Charlton township | 8 | 1,417 | 1,357 | 0.85% | 14 | 100.37 | Township |
| Chester township | 9 | 1,350 | 1,301 | 0.67% | 20 | 67.58 | Township |
| Vanderbilt | 10 | 532 | 516 | 0.57% | 488 | 1.09 | Village |
Bagley township is the largest city in Otsego County, with a population of 6,140.
Vanderbilt is the smallest city in Otsego County.
There are 10 cities in Otsego County, Michigan.