| Locality | Post Code |
|---|---|
| Ambarchik, Nizhnekolymsky district (Амбарчик) | 678831 |
| Andryushkino, Nizhnekolymsky district (Андрюшкино) | 678837 |
| Chersky, Nizhnekolymsky district (Черский) | 678822, 678830, 678831 |
| Chukochya, Nizhnekolymsky district (Чукочья) | 678831 |
| Dve Viski, Nizhnekolymsky district (Две Виски) | 678831 |
| Ermolovo, Nizhnekolymsky district (Ермолово) | 678831 |
| Kolymskoe, Nizhnekolymsky district (Колымское) | 678822, 678830, 678835 |
| Krestovaya, Nizhnekolymsky district (Крестовая) | 678831 |
| Mikhalkino, Nizhnekolymsky district (Михалкино) | 678831 |
| Nizhnekolymsk, Nizhnekolymsky district (Нижнеколымск) | 678831 |
| Nizhnekolymsky, Nizhnekolymsky district (Нижнеколымский) | 678822 |
| Pokhodsk, Nizhnekolymsky district (Походск) | 678822 |
| Timkino, Nizhnekolymsky district (Тимкино) | 678831 |