| Zip Code | Primary City | Secondary City | More Information |
| 28401 | Wilmington | Wilm | |
| 28402 | Wilmington | Wilm | |
| 28403 | Wilm | Wilm | |
| 28404 | Wilmington | Wilm | |
| 28405 | Wilmington | Wilm | |
| 28406 | Wilmington | Wilm | |
| 28407 | Wilmington | Wilm | |
| 28408 | Wilmington | Wilm | |
| 28409 | Wilmington | Wilm | |
| 28410 | Wilmington | Wilm | |
| 28411 | Wilmington | Wilm | |
| 28412 | Wilmington | Wilm | |
| 28401 | Wilmington | Wilmington | Wilmington population stats |
| 28402 | Wilmington | Wilmington | Wilmington population stats |
| 28403 | Wilmington | Wilmington | Wilmington population stats |
| 28404 | Wilmington | Wilmington | Wilmington population stats |
| 28405 | Wilmington | Wilmington | Wilmington population stats |
| 28407 | Wilmington | Wilmington | Wilmington population stats |
| 28408 | Wilmington | Wilmington | Wilmington population stats |
| 28409 | Wilmington | Wilmington | Wilmington population stats |
| 28410 | Wilmington | Wilmington | Wilmington population stats |
| 28411 | Wilmington | Wilmington | Wilmington population stats |
| 28412 | Wilmington | Wilmington | Wilmington population stats |