| Place |
Post Code |
| Anousorn, Thetsaban |
07000 |
| Bak, Thetsaban |
07000 |
| Eurn, Thetsaban |
07000 |
| Longkou, Thetsaban |
07000 |
| Nakay, Thetsaban |
07000 |
| Naxay, Thetsaban |
07000 |
| Ongkhathiam, Thetsaban |
07000 |
| Pem, Thetsaban |
07000 |
| Phonbaeng, Thetsaban |
07000 |
| Phouxay, Thetsaban |
07000 |
| Sath, Thetsaban |
07000 |
| Viengphan, Thetsaban |
07000 |
| All postal codes in Viengxay |
| Chat, Viengxay |
| Kang, Viengxay |
| Long-ang, Viengxay |
| Muangpan, Viengxay |
| Muangpoua, Viengxay |
| Namnga, Viengxay |
| Namxang, Viengxay |
| Phonthong, Viengxay |
| Phoun, Viengxay |
| Sonphet, Viengxay |
| Soy, Viengxay |
| Thetsaban, Viengxay |
| Xienglong, Viengxay |
| Xiengmaen, Viengxay |