| Place | Post Code |
|---|---|
| Abergare Forest, Dedan Kimanthi | 10100 |
| Gatumbiro, Dedan Kimanthi | 10100 |
| Ichagachiru, Dedan Kimanthi | 10100 |
| Ihururu, Dedan Kimanthi | 10100 |
| Kabage, Dedan Kimanthi | 10100 |
| Kanjora, Dedan Kimanthi | 10100 |
| Karaihu, Dedan Kimanthi | 10100 |
| Karunaini, Dedan Kimanthi | 10100 |
| Kigogoini, Dedan Kimanthi | 10100 |
| Kirurumi, Dedan Kimanthi | 10100 |
| Ngooru, Dedan Kimanthi | 10100 |
| Thatha, Dedan Kimanthi | 10100 |
| Wandumbi, Dedan Kimanthi | 10100 |
| Zaina, Dedan Kimanthi | 10100 |
| All postal codes in Tetu | |
|---|---|
| Aguthi-Gaaki, Tetu | |
| Dedan Kimanthi, Tetu | |
| Wamagana, Tetu | |