| Locality | Post Code |
|---|---|
| Sarma, Olkhonsky district (Сарма) | 666135, 666423 |
| Shara-Togot, Olkhonsky district (Шара-Тогот) | 666135 |
| Shida, Olkhonsky district (Шида) | 666135 |
| Talovka, Olkhonsky district (Таловка) | 666130, 666423 |
| Tonta, Olkhonsky district (Тонта) | 666100, 666423 |
| Tyrgan, Olkhonsky district (Тырган) | 666100, 666423 |
| Usyk, Olkhonsky district (Усык) | 666137 |
| Uzury, Olkhonsky district (Узуры) | 666137 |
| Yalga, Olkhonsky district (Ялга) | 666137 |
| Zama, Olkhonsky district (Зама) | 666136 |