| Locality | Post Code |
|---|---|
| Aiaki, Onotoa | |
| Buariki, Onotoa | |
| Otowae, Onotoa | |
| Tabuarorae, Onotoa | |
| Tanaeang, Onotoa | |
| Tekawa, Onotoa | |
| Temao, Onotoa |
| Gilbert Islands Postal Codes | |
|---|---|
| Tamana | South Tarawa |
| South Tabiteuea | Onotoa |
| North Tarawa | North Tabiteuea |
| Nonouti | Nikunau |
| Marakei | Makin |
| Maiana | Kuria |
| Butaritari | Beru |
| Banaba | Arorae |
| Aranuka | Abemama |
| Abaiang | |