Ikwerre is one of the twenty-three (23) Local Government Areas (LGAs) in Rivers State, Nigeria. Its headquarters are located in the town of Isiokpo.
Locations within the LGA make use of the same postal or zip code.
Here’s the postcode for areas in Ikwerre:
| Location | Postcode |
| Umuchi | 511101 |
| Umukine | 511101 |
| Umukpuru | 511101 |
| Uuokela | 511101 |
| Omuoduku | 511101 |
| Omuota | 511101 |
| Ubabah | 511101 |
| Omuogboro | 511101 |
| Omuotiua | 511101 |
| Ubima | 511101 |
| Omukiole | 511101 |
| Omuogwor | 511101 |
| Omuotutua | 511101 |
| Ubiti | 511101 |
| Omukpiriku | 511101 |
| Omuohechi | 511101 |
| Omuoviri | 511101 |
| Ubordu | 511101 |
| Omukume | 511101 |
| Omuohia | 511101 |
| Omure | 511101 |
| Omukwata | 511101 |
| Omuohiaa | 511101 |
| Omute | 511101 |
| Omukwosi | 511101 |
| Omuohie | 511101 |
| Omutogbule | 511101 |
| Omumini | 511101 |
| Omuokiri | 511101 |
| Omuueka | 511101 |
| Omuna | 511101 |
| Omuokirika | 511101 |
| Omuuoda | 511101 |
| Omungbe | 511101 |
| Omuoko | 511101 |
| Omuwhiei | 511101 |
| Omunkpu-Omute | 511101 |
| Omuokpa-Omukuosi | 511101 |
| Omuwonini | 511101 |
| Omunkwo | 511101 |
| Omuolori | 511101 |
| Omuzua | 511101 |
| Omunobo | 511101 |
| Omuolu | 511101 |
| Onwali | 511101 |
| Omunwonjor | 511101 |
| Omuonua | 511101 |
| Orua | 511101 |
| Omuobaa | 511101 |
| Omuoparaaga | 511101 |
| Ozuaha | 511101 |
| Omuodu | 511101 |
| Omuosi | 511101 |
| Rumuekpe | 511101 |
| Nkaralua | 511101 |
| Omesiobi | 511101 |
| Omuchsor | 511101 |
| Omuiopi | 511101 |
| Obelle | 511101 |
| Omihua | 511101 |
| Omudagwa | 511101 |
| Omuketai | 511101 |
| Obelle-Edoha | 511101 |
| Omizua | 511101 |
| Omudari | 511101 |
| Obiti | 511101 |
| Omoawa | 511101 |
| Omudidia | 511101 |
| Obo | 511101 |
| Omobiri | 511101 |
| Omuechem | 511101 |
| Oborum | 511101 |
| Omuadi | 511101 |
| Omuegwa | 511101 |
| Ogankira | 511101 |
| Omuagu | 511101 |
| Omuehia | 511101 |
| Ogbasara | 511101 |
| Omuagubia | 511101 |
| Omuehie | 511101 |
| Ogbasara-Imea | 511101 |
| Omuagwewirie | 511101 |
| Omueke | 511101 |
| Ogboda | 511101 |
| Omuahunwo | 511101 |
| Omuele | 511101 |
| Okperekpe | 511101 |
| Omuchagor | 511101 |
| Omueze | 511101 |
| Omademe | 511101 |
| Omuchama | 511101 |
| Omugbala | 511101 |
| Omagwa | 511101 |
| Omuchetu | 511101 |
| Omuigwe | 511101 |
| Omaku | 511101 |
| Omuchi | 511101 |
| Omuigwe-Omute | 511101 |
| Omaraike | 511101 |
| Omuchinwo | 511101 |
| Omuike | 511101 |
| Omerelu | 511101 |
| Omuchiolu | 511101 |
| Omuikega | 511101 |
| Adanta | 511101 |
| Itu | 511101 |
| Agbaoga | 511101 |
| Mbunta | 511101 |
| Agwa-Nuahua | 511101 |
| Mgbaogba | 511101 |
| Agwara | 511101 |
| Mgbo | 511101 |
| Ahiniri | 511101 |
| Mgbodo | 511101 |
| Akpabu | 511101 |
| Mgbu-Ahana | 511101 |
| Aluu | 511101 |
| Mgbuanyuri | 511101 |
| Apani | 511101 |
| Mgbuefitibia | 511101 |
| Ekuche | 511101 |
| Mgbuhie | 511101 |
| Elele | 511101 |
| Mgbumini | 511101 |
| Ezeogo | 511101 |
| Mgbuodo | 511101 |
| Igwuruta | 511101 |
| Mgbuodukwu | 511101 |
| Igwuruta-Ali | 511101 |
| Mgbuogidi | 511101 |
| Imogu | 511101 |
| Mgbuokiri | 511101 |
| Ipo | 511101 |
| Mgbuokwukwu | 511101 |
| Isiokpo | 511101 |
| Mgbuonyi | 511101 |
