| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Jampit, Ijen | 68288 |
| Postal/ZIP Codes in Kalianyar, Ijen | 68288 |
| Postal/ZIP Codes in Kaligedang, Ijen | 68288 |
| Postal/ZIP Codes in Kalisat, Ijen | 68288 |
| Postal/ZIP Codes in Sempol, Ijen | 68288 |
| Postal/ZIP Codes in Sumber Rejo, Ijen | 68288 |