| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Gitundu, Iria-Ini | 10100 |
| Postal/ZIP Codes in Ihuririo, Iria-Ini | 10100 |
| Postal/ZIP Codes in Kairuthi, Iria-Ini | 10100 |
| Postal/ZIP Codes in Kiagonye, Iria-Ini | 10100 |
| Postal/ZIP Codes in Kiahugu, Iria-Ini | 10100 |
| Postal/ZIP Codes in Kiandemi, Iria-Ini | 10100 |
| Postal/ZIP Codes in Thunguri, Iria-Ini | 10100 |