All cities in Delaware
| City Name | Population | State | Rank |
|---|
| Wilmington City | 70,851 | Delaware | 1 |
| Dover City | 36,047 | Delaware | 2 |
| Newark City | 31,454 | Delaware | 3 |
| Bear | 19,371 | Delaware | 4 |
| Middletown Town | 18,871 | Delaware | 5 |
| Brookside | 14,353 | Delaware | 6 |
| Glasgow | 14,303 | Delaware | 7 |
| Hockessin | 13,527 | Delaware | 8 |
| Pike Creek Valley | 11,217 | Delaware | 9 |
| Smyrna Town | 10,023 | Delaware | 10 |
| Milford City | 9,559 | Delaware | 11 |
| Claymont | 8,253 | Delaware | 12 |
| North Star | 7,980 | Delaware | 13 |
| Pike Creek | 7,898 | Delaware | 14 |
| Wilmington Manor | 7,889 | Delaware | 15 |
| Seaford City | 6,928 | Delaware | 16 |
| Georgetown Town | 6,422 | Delaware | 17 |
| Elsmere Town | 6,131 | Delaware | 18 |
| Edgemoor | 5,677 | Delaware | 19 |
| New Castle City | 5,285 | Delaware | 20 |