| Place | Post Code |
|---|---|
| 灯塔村 (Dengta, Hainan Tibetan) | 813301 |
| 都台村 (Doutai, Hainan Tibetan) | 813301 |
| 红旗村 (Hongqi, Hainan Tibetan) | 813301 |
| Postal Codes in Xinghai | |
|---|---|
| Heka (河卡镇) | |
| Longcang (龙藏乡) | |
| Qushenan (曲什安乡) | |
| Sangdang (桑当乡) | |
| Tangnaihai (唐乃亥乡) | |
| Wenquan (温泉乡) | |
| Zhongtie (中铁乡) | |
| Ziketan (子科滩镇) | |