| Place | Post Code |
|---|---|
| Kamiigua, Nyangati | 10300 |
| Kangu, Nyangati | 10300 |
| Kirimara, Nyangati | 10300 |
| Kithiriti, Nyangati | 10300 |
| Nyangati, Nyangati | 10300 |
| All postal codes in Mwea | |
|---|---|
| Gathigiriri, Mwea | |
| Kangai, Mwea | |
| Murinduko, Mwea | |
| Mutithi, Mwea | |
| Nyangati, Mwea | |
| Tebere, Mwea | |
| Thiba, Mwea | |
| Wamumu, Mwea | |