| Locality | Post Code |
|---|---|
| Birkirkara, Birkirkara | BKR |
| Fleur-de-Lys, Birkirkara | BKR |
| Is-Swatar, Birkirkara | BKR |
| Mrieħel, Birkirkara | BKR |
| Northern Harbour Postal Codes | |
|---|---|
| Tal-Pietà | Ta' Xbiex |
| Swieqi | Sliema |
| Santa Venera | San Ġwann |
| San Ġiljan | Qormi |
| Pembroke | L-Imsida |
| Il-Ħamrun | Il-Gżira |
| Birkirkara | |