| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Banai, IX Koto | 27683 |
| Postal/ZIP Codes in Koto Nan Iv Dibawuah, IX Koto | 27683 |
| Postal/ZIP Codes in Lubuk Karak, IX Koto | 27683 |
| Postal/ZIP Codes in Nan Iv Bawauah, IX Koto | 27681 |
| Postal/ZIP Codes in Silago, IX Koto | 27683 |