| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19808 |
| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19805 |
| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19802 |
| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19810 |
| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19803 |
| Post Office | Wilmington |
| Division | New Castle |
| Geo post code | 19804 |