| Place | Post Code |
|---|---|
| 海峰村 (Haifeng, Haibei Tibetan) | 812200 |
| 黄草村 (Huangcao, Haibei Tibetan) | 812200 |
| 三角城村 (Sanjiaocheng, Haibei Tibetan) | 812200 |
| 三联村 (Sanlian, Haibei Tibetan) | 812200 |
| 三西岔村 (Sanxicha, 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) | |