China Postal Code of Longnan
| District/County in English | District/County in Chinese | Postal Code | Province |
|---|---|---|---|
| Longnan City | 742500 | Gansu Province | |
| Xihe County | 742100 | Gansu Province | |
| Li County | 742200 | Gansu Province | |
| Hui County | 742300 | Gansu Province | |
| Liangdang County | 742400 | Gansu Province | |
| Cheng County | 742500 | Gansu Province | |
| Wudu District | 746000 | Gansu Province | |
| Wen County | 746400 | Gansu Province | |
| Kang County | 746500 | Gansu Province | |
| Dangchang County | 748500 | Gansu Province |