| Place | Postal Code |
|---|---|
| 俄日村 (Eri, Haibei Tibetan) | 812200 |
| 尕海村 (Gahai, Haibei Tibetan) | 812200 |
| 甘子河村 (Ganzihe, Haibei Tibetan) | 812200 |
| 热水村 (Reshui, Haibei Tibetan) | 812200 |
| Postal Codes in Haiyan | |
|---|---|
| Ganzihe (甘子河乡) | |
| Haiyan (海晏县) | |
| Haleijing (哈勒景乡) | |
| Jintan (金滩乡) | |
| Qinghaihu (青海湖乡) | |
| Sanjiaocheng (三角城镇) | |
| Tuolei (托勒乡) | |
| Xihai (西海镇) | |
| Yintan (银滩乡) | |