| Place | Post Code |
|---|---|
| Gna Kha, Kounglouk | 02000 |
| Gnangoung, Kounglouk | 02000 |
| Hatka, Kounglouk | 02000 |
| Houay Ene, Kounglouk | 02000 |
| Houay Leng, Kounglouk | 02000 |
| Houayphe, Kounglouk | 02000 |
| Houaysoy, Kounglouk | 02000 |
| Houayyang, Kounglouk | 02000 |
| Kiokacham, Kounglouk | 02000 |
| Kokkheuang, Kounglouk | 02000 |
| Kounglouk, Kounglouk | 02000 |
| Koungt Lou, Kounglouk | 02000 |
| Lahang, Kounglouk | 02000 |
| Mokkaak, Kounglouk | 02000 |
| Ompalou, Kounglouk | 02000 |
| Omtaleum, Kounglouk | 02000 |
| Phia, Kounglouk | 02000 |
| Sen In, Kounglouk | 02000 |
| Senlouang, Kounglouk | 02000 |
| All postal codes in May | |
|---|---|
| Houaykop, May | |
| Kounglouk, May | |
| Nalam, May | |
| Namnga, May | |
| Pakphae, May | |
| Palan, May | |
| Phialo, May | |
| Phonxai, May | |
| Poungyang, May | |
| Sophoun, May | |