| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Escanaba | 1 | 12,231 | 12,411 | -0.21% | 960 | 13 | City |
| Gladstone | 2 | 5,183 | 5,228 | -0.12% | 1,023 | 5 | City |
| Wells | 3 | 4,804 | 4,869 | -0.35% | 121 | 40 | Township |
| Escanaba | 4 | 3,541 | 3,527 | -0.31% | 59 | 60 | Township |
| Ford River | 5 | 2,008 | 2,027 | -0.3% | 31 | 65 | Township |
| Masonville | 6 | 1,619 | 1,643 | -0.37% | 10 | 167 | Township |
| Wells | 7 | 1,585 | 1,585 | 0% | 46 | 34 | Township |
| Bark River | 8 | 1,580 | 1,597 | -0.32% | 35 | 46 | Township |
| Rapid River | 9 | 1,305 | 1,247 | 0.31% | 37 | 35 | Township |
| Brampton | 10 | 1,026 | 1,032 | -0.19% | 43 | 24 | Township |
| Garden | 11 | 772 | 777 | -0.13% | 5.0 | 160 | Township |
| Ensign | 12 | 736 | 746 | -0.41% | 13 | 59 | Township |
| Maple Ridge | 13 | 685 | 692 | -0.29% | 6.0 | 108 | Township |
| Cornell | 14 | 565 | 565 | -0.18% | 9.0 | 60 | Township |
| Nahma | 15 | 457 | 466 | -0.65% | 3.0 | 168 | Township |
| Bay de Noc | 16 | 296 | 300 | -0.34% | 4.0 | 68 | Township |
| Fairbanks | 17 | 293 | 297 | -0.68% | 6.0 | 47 | Township |
| Wells | 18 | 218 | 214 | 0% | 1.0 | 154 | Township |
| Garden | 19 | 186 | 189 | -0.53% | 225 | 1 | Village |
Escanaba is the largest city in Delta County, with a population of 12,231.
Garden is the smallest city in Delta County, with a population of 186.
There are 19 cities in Delta County, Michigan.