| District/County in English | District/County in Chinese | Postal Code | Province |
| Hulunbuir City | 呼伦贝尔市 | 021000 |
Inner Mongolia Autonomous Region
|
| Hailar District | 海拉尔区 | 021000 |
Inner Mongolia Autonomous Region
|
| Evenk Autonomous Banner | 鄂温克族自治旗 | 021100 |
Inner Mongolia Autonomous Region
|
| New Barag Left Banner | 新巴尔虎左旗 | 021200 |
Inner Mongolia Autonomous Region
|
| New Barag Right Banner | 新巴尔虎右旗 | 021300 |
Inner Mongolia Autonomous Region
|
| Manzhouli City | 满洲里市 | 021400 |
Inner Mongolia Autonomous Region
|
| Old Barag Banner | 陈巴尔虎旗 | 021500 |
Inner Mongolia Autonomous Region
|
| Yakeshi City | 牙克石市 | 022150 |
Inner Mongolia Autonomous Region
|
| Ergun City | 额尔古纳市 | 022250 |
Inner Mongolia Autonomous Region
|
| Genhe City | 根河市 | 022350 |
Inner Mongolia Autonomous Region
|
| Oroqen Autonomous Banner | 鄂伦春自治旗 | 022450 |
Inner Mongolia Autonomous Region
|
| Zalantun City | 扎兰屯市 | 162650 |
Inner Mongolia Autonomous Region
|
| Arun Banner | 阿荣旗 | 162750 |
Inner Mongolia Autonomous Region
|
| Morin Dawa Daur Autonomous Banner | 莫力达瓦达斡尔族自治旗 | 162850 |
Inner Mongolia Autonomous Region
|