27 cities
| City | Rank | County | 2026 Pop. ↓ |
|---|---|---|---|
| Dover | 1 | Kent County | 40,583 |
| Smyrna | 2 | Kent County | 13,505 |
| Clayton | 3 | Kent County | 4,772 |
| Camden | 4 | Kent County | 4,423 |
| Rising Sun-Lebanon | 5 | Kent County | 4,381 |
| Harrington | 6 | Kent County | 4,012 |
| Highland Acres | 7 | Kent County | 3,708 |
| Dover Base Housing | 8 | Kent County | 2,928 |
| Cheswold | 9 | Kent County | 2,838 |
| Kent Acres | 10 | Kent County | 2,690 |
| Riverview | 11 | Kent County | 2,402 |
| Wyoming | 12 | Kent County | 1,953 |
| Woodside East | 13 | Kent County | 1,533 |
| Felton | 14 | Kent County | 1,403 |
| Rodney Village | 15 | Kent County | 1,279 |
| Frederica | 16 | Kent County | 1,151 |
| Houston | 17 | Kent County | 411 |
| Magnolia | 18 | Kent County | 295 |
| Bowers | 19 | Kent County | 291 |
| Slaughter Beach | 20 | Kent County | 261 |
| Kenton | 21 | Kent County | 227 |
| Little Creek | 22 | Kent County | 207 |
| Woodside | 23 | Kent County | 203 |
| Leipsic | 24 | Kent County | 190 |
| Viola | 25 | Kent County | 147 |
| Farmington | 26 | Kent County | 105 |
| Hartly | 27 | Kent County | 82 |
Kent County is the county generally considered as Central Delaware.