| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Houang Taigne, Kiou | 02000 |
| Postal/ZIP Codes in Houaylou, Kiou | 02000 |
| Postal/ZIP Codes in Houaytaye, Kiou | 02000 |
| Postal/ZIP Codes in Houayxeune, Kiou | 02000 |
| Postal/ZIP Codes in Kiou, Kiou | 02000 |
| Postal/ZIP Codes in Lafuchai, Kiou | 02000 |
| Postal/ZIP Codes in Longthang, Kiou | 02000 |
| Postal/ZIP Codes in Mai, Kiou | 02000 |
| Postal/ZIP Codes in Nam Ong, Kiou | 02000 |
| Postal/ZIP Codes in Namkhoun, Kiou | 02000 |
| Postal/ZIP Codes in Phoudokcham, Kiou | 02000 |