27 cities
| City | Rank | County | 2025 Pop. ↓ |
|---|---|---|---|
| Dover | 1 | Kent County | 40,276 |
| Smyrna | 2 | Kent County | 13,491 |
| Clayton | 3 | Kent County | 4,671 |
| Camden | 4 | Kent County | 4,495 |
| Rising Sun-Lebanon | 5 | Kent County | 4,227 |
| Highland Acres | 6 | Kent County | 4,000 |
| Harrington | 7 | Kent County | 3,914 |
| Dover Base Housing | 8 | Kent County | 3,215 |
| Cheswold | 9 | Kent County | 2,472 |
| Riverview | 10 | Kent County | 2,224 |
| Kent Acres | 11 | Kent County | 2,182 |
| Wyoming | 12 | Kent County | 1,975 |
| Woodside East | 13 | Kent County | 1,923 |
| Felton | 14 | Kent County | 1,380 |
| Rodney Village | 15 | Kent County | 1,258 |
| Frederica | 16 | Kent County | 1,136 |
| Houston | 17 | Kent County | 404 |
| Bowers | 18 | Kent County | 291 |
| Magnolia | 19 | Kent County | 289 |
| Slaughter Beach | 20 | Kent County | 255 |
| Kenton | 21 | Kent County | 231 |
| Little Creek | 22 | Kent County | 204 |
| Woodside | 23 | Kent County | 198 |
| Leipsic | 24 | Kent County | 188 |
| Viola | 25 | Kent County | 150 |
| Farmington | 26 | Kent County | 104 |
| Hartly | 27 | Kent County | 81 |
Kent County is the county generally considered as Central Delaware.