| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Big Rapids | 1 | 8,675 | 8,361 | 0.6% | 1,952 | 4 | City |
| Morton | 2 | 4,835 | 4,431 | 1.45% | 146 | 33 | Township |
| Big Rapids | 3 | 4,131 | 3,944 | 0.85% | 136 | 30 | Township |
| Green | 4 | 3,443 | 3,227 | 1.03% | 93 | 37 | Township |
| Mecosta | 5 | 2,917 | 2,750 | 0.9% | 86 | 34 | Township |
| Aetna | 6 | 2,380 | 2,241 | 0.98% | 67 | 36 | Township |
| Colfax | 7 | 2,052 | 1,961 | 0.79% | 58 | 35 | Township |
| Austin | 8 | 1,824 | 1,719 | 1.05% | 51 | 36 | Township |
| Fork | 9 | 1,715 | 1,625 | 0.88% | 49 | 35 | Township |
| Martiny | 10 | 1,688 | 1,598 | 0.9% | 53 | 32 | Township |
| Wheatland | 11 | 1,467 | 1,401 | 0.82% | 41 | 35 | Township |
| Chippewa | 12 | 1,297 | 1,225 | 0.93% | 39 | 33 | Township |
| Hinton | 13 | 1,123 | 1,055 | 1.08% | 31 | 36 | Township |
| Millbrook | 14 | 1,120 | 1,066 | 0.81% | 31 | 36 | Township |
| Morley | 15 | 540 | 512 | 0.93% | 603 | 1 | Village |
| Mecosta | 16 | 500 | 400 | 3.31% | 450 | 1 | Village |
| Paris | 17 | 470 | 490 | -0.84% | 13 | 36 | Township |
| Barryton | 18 | 417 | 401 | 0.48% | 436 | 1 | Village |
| Stanwood | 19 | 213 | 203 | 0.47% | 880 | 0 | Village |
Big Rapids is the largest city in Mecosta County, with a population of 8,675.
Stanwood is the smallest city in Mecosta County, with a population of 213.
There are 19 cities in Mecosta County, Michigan.