| Locality | Post Code |
|---|---|
| Aikhal, Mirninsky district (Айхал) | 678190 |
| Almazny, Mirninsky district (Алмазный) | 678181 |
| Arylakh, Mirninsky district (Арылах) | 678183 |
| Berezovka, Mirninsky district (Березовка) | 678170 |
| Chernyshevsky, Mirninsky district (Чернышевский) | 678185 |
| Mirny, Mirninsky district (Мирный) | 678144, 678145, 678170, 678171, 678173, … |
| Morkoka, Mirninsky district (Моркока) | 678171 |
| Novy, Mirninsky district (Новый) | 678183 |
| Svetly, Mirninsky district (Светлый) | 678196 |
| Syuldyukar, Mirninsky district (Сюльдюкар) | 678186 |
| Tas-Yuryakh, Mirninsky district (Тас-Юрях) | 678184 |
| Udachny, Mirninsky district (Удачный) | 678188 |
| Zarya, Mirninsky district (Заря) | 678170, 678183 |