Delaware Gazetteer
| Name | County | Total Population | |
|---|---|---|---|
| 1. | City of Wilmington | New Castle | 72,788 |
| 2. | City of Dover | Kent | 41,558 |
| 3. | City of Newark | New Castle | 31,108 |
| 4. | Town of Middletown | New Castle | 25,357 |
| 5. | Bear Census Designated Place | New Castle | 22,934 |
| 6. | Glasgow Census Designated Place | New Castle | 15,794 |
| 7. | Brookside Census Designated Place | New Castle | 14,792 |
| 8. | Town of Smyrna | Kent | 14,340 |
| 9. | Hockessin Census Designated Place | New Castle | 13,466 |
| 10. | City of Milford | Sussex | 12,444 |
| 11. | Pike Creek Valley Census Designated Place | New Castle | 11,514 |
| 12. | Claymont Census Designated Place | New Castle | 9,799 |
| 13. | Town of Millsboro | Sussex | 9,199 |
| 14. | City of Seaford | Sussex | 8,627 |
| 15. | Wilmington Manor Census Designated Place | New Castle | 8,274 |
| 16. | North Star Census Designated Place | New Castle | 7,768 |
| 17. | Town of Georgetown | Sussex | 7,750 |
| 18. | Pike Creek Census Designated Place | New Castle | 7,644 |
| 19. | Edgemoor Census Designated Place | New Castle | 6,535 |
| 20. | Town of Elsmere | New Castle | 6,173 |
