| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Lak 18, Bo | 11000 |
| Postal/ZIP Codes in Lak 33, Bo | 11000 |
| Postal/ZIP Codes in Lak 37, Bo | 11000 |
| Postal/ZIP Codes in Nakouang, Bo | 11000 |
| Postal/ZIP Codes in Namkai Or Nampat, Bo | 11000 |
| Postal/ZIP Codes in Namtae, Bo | 11000 |
| Postal/ZIP Codes in Nayao, Bo | 11000 |
| Postal/ZIP Codes in Nihouaseau, Bo | 11000 |
| Postal/ZIP Codes in Phonthong, Bo | 11000 |
| Postal/ZIP Codes in Phupha, Bo | 11000 |