Postal Services
| Han Yu Pin Yin | Tongyong Pin Yin | Zip Code |
|---|---|---|
| Ren’ai Dist., Keelung City, | Ren’ai Dist., Keelung City, | 200 |
| Xinyi Dist., Keelung City, | Sinyi Dist., Keelung City, | 201 |
| Zhongzheng Dist., Keelung City, | Jhongjheng Dist., Keelung City, | 202 |
| Zhongshan Dist., Keelung City, | Jhongshan Dist., Keelung City, | 203 |
| Anle Dist., Keelung City, | Anle Dist., Keelung City, | 204 |
| Nuannuan Dist., Keelung City, | Nuannuan Dist., Keelung City, | 205 |
| Qidu Dist., Keelung City, | Cidu Dist., Keelung City, | 206 |
