| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Belo Polje, Istok (Bellopojë) | 38334, 38334 |
| Postal/ZIP Codes in Blagača, Istok | 38334, 38334 |
| Postal/ZIP Codes in Crkolez, Istok (Cerkolez) | 38334, 38334 |
| Postal/ZIP Codes in Dragoljevac, Istok (Dragolec) | 38334, 38334 |
| Postal/ZIP Codes in Istok, Istok (Istog) | 38334, 38334 |
| Postal/ZIP Codes in Koš, Istok (Kosh) | 38334, 38334 |
| Postal/ZIP Codes in Muževine, Istok (Muzhevinë) | 38334, 38334 |
| Postal/ZIP Codes in Osojane, Istok (Osojan) | 38334, 38334 |
| Postal/ZIP Codes in Šaljinovica, Istok (Shalinovicë) | 38334, 38334 |
| Postal/ZIP Codes in Sinaje, Istok (Sinajë) | 38334, 38334 |
| Postal/ZIP Codes in Srbobran, Istok (Serbobran) | 38334, 38334 |
| Postal/ZIP Codes in Suvi Lukavac, Istok (Llukac i Thatë) | 38334, 38334 |
| Postal/ZIP Codes in Tučep, Istok (Tuçep) | 38334, 38334 |
| Postal/ZIP Codes in Verić, Istok (Veriq) | 38334, 38334 |
| Postal/ZIP Codes in Žač, Istok (Zallq) | 38334, 38334 |