| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Koja, Koja | 14210 |
| Postal/ZIP Codes in Lagoa, Koja | 14270 |
| Postal/ZIP Codes in Rawa Badak Selatan, Koja | 14230 |
| Postal/ZIP Codes in Rawa Badak Utara, Koja | 14230 |
| Postal/ZIP Codes in Tugu Selatan, Koja | 14260 |
| Postal/ZIP Codes in Tugu Utara, Koja | 14260 |