| Locality | Post Code |
|---|---|
| Elwyn, Delaware | 19063 |
| Essington, Delaware | 19029 |
| Feltonville, Delaware | 19013 |
| Fernwood, Delaware | 19050 |
| Folcroft, Delaware | 19032 |
| Folsom, Delaware | 19033 |
| Garden City, Delaware | 19063, 19086 |
| Garnet Valley, Delaware | 19060 |
| Glen Mills, Delaware | 19342 |
| Glen Riddle, Delaware | 19063 |
| Glen Riddle Lima, Delaware | 19037 |
| Glenolden, Delaware | 19036 |
| Gradyville, Delaware | 19039 |
| Green Ridge, Delaware | 19014 |
| Haverford, Delaware | 19041 |
| Havertown, Delaware | 19083 |
| Highland Park, Delaware | 19082 |
| Holmes, Delaware | 19043 |
| Ithan, Delaware | 19085 |
| Kirklyn, Delaware | 19082 |
| Lansdowne, Delaware | 19050 |
| Lawrence Park, Delaware | 19008 |
| Lenni, Delaware | 19052 |
| Lester, Delaware | 19029 |
| Lima, Delaware | 19037 |
| Linwood, Delaware | 19061 |