| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Halkalı Merkez mah., İstanbul) | 34303 |
| Postal/ZIP Codes in İstasyon mah., İstanbul) | 34303 |
| Postal/ZIP Codes in Yarımburgaz mah., İstanbul) | 34303 |
| Postal Codes in Küçükçekmece | |
|---|---|
| Postal/ZIP Codes in Atakent | |
| Postal/ZIP Codes in Halkalı | |
| Postal/ZIP Codes in Küçükçekmece | |
| Postal/ZIP Codes in Sefaköy | |