Delaware Gazetteer
| Name | County | Total Population | |
|---|---|---|---|
| 1. | City of Wilmington | New Castle | 71,282 |
| 2. | City of Dover | Kent | 40,064 |
| 3. | City of Newark | New Castle | 32,673 |
| 4. | Town of Middletown | New Castle | 23,251 |
| 5. | Bear Census Designated Place | New Castle | 21,866 |
| 6. | Brookside Census Designated Place | New Castle | 14,635 |
| 7. | Glasgow Census Designated Place | New Castle | 14,491 |
| 8. | Hockessin Census Designated Place | New Castle | 13,633 |
| 9. | Town of Smyrna | Kent | 13,314 |
| 10. | City of Milford | Sussex | 11,586 |
| 11. | Pike Creek Valley Census Designated Place | New Castle | 11,169 |
| 12. | Claymont Census Designated Place | New Castle | 9,670 |
| 13. | City of Seaford | Sussex | 8,319 |
| 14. | North Star Census Designated Place | New Castle | 8,167 |
| 15. | Town of Georgetown | Sussex | 7,908 |
| 16. | Town of Millsboro | Sussex | 7,878 |
| 17. | Wilmington Manor Census Designated Place | New Castle | 7,873 |
| 18. | Pike Creek Census Designated Place | New Castle | 7,680 |
| 19. | Town of Elsmere | New Castle | 6,283 |
| 20. | Edgemoor Census Designated Place | New Castle | 5,910 |
