Njikoka Postal Codes range from 421101 to 421106. This local government area is located in Anambra State, South-East Geopolitical Zone of Nigeria.

Here are the postal codes for Njikoka LGA:
Abagana
| Place | Postal code |
| Adagbe-Abagana | 421101 |
| Adagbo-Oraofia | 421101 |
| Adagbo-Umuduna | 421101 |
| Akpu-Abagama | 421101 |
| Amuenuye | 421101 |
| Enora-Oraofia | 421101 |
| Enuora-Umidin | 421101 |
| Nahuru | 421101 |
| Uruokpala | 421101 |
Abba
| Place | Postal code |
| Umuozuliri | 471121 |
| Amukwe | 471121 |
| Mbara | 471121 |
| Okwaradimnasu | 471121 |
| Okwaradum | 471121 |
| Okwesi | 471121 |
| Orinaosa | 471121 |
| Oteke | 471121 |
| Umudim | 471121 |
| Umuduruagwu | 471121 |
| Umuezealaibe | 471121 |
| Umuonuma | 471121 |
| Umuotukwu | 471121 |
| Amabo | 421103 |
| Ekpuloji | 421103 |
| Eziabba | 421103 |
| Ire | 421103 |
Enugwu-Agidi
| Place | Postal code |
| Achala | 421104 |
| Egbedeamu | 421104 |
| Etiti | 421104 |
| Ifite | 421104 |
| Igbolo | 421104 |
| Irunebo | 421104 |
| Iruobigeli | 421104 |
| Iruoma | 421104 |
| Nomu | 421104 |
| Ogwugwu | 421104 |
Enugwu-Ukwu
| Place | Postal code |
| Adagbabomini | 421106 |
| Urunnebe | 421106 |
| Akiyi | 421106 |
| Uruogbo | 421106 |
| Awaobu | 421106 |
| Enuabomini | 421106 |
| Enuage | 421106 |
| Ire | 421106 |
| Orji | 421106 |
| Orofia | 421106 |
| Osili | 421106 |
| Umuakwu | 421106 |
| Umuatulu-Awa-Abu | 421106 |
| Umuatulu-Ifiteani | 421106 |
| Umuoji | 421106 |
| Uruabor | 421106 |
| Uruekwo | 421106 |
| Urukpalake | 421106 |
Nawfia
| Place | Postal code |
| Ifite | 421105 |
| Mmini | 421105 |
| Nmukwa | 421105 |
| Umudunu | 421105 |
| Umuriam | 421105 |
| Uruoji | 421105 |
Nimo
| Place | Postal code |
| Abba | 421102 |
| Uruani Otenyi | 421102 |
| Ajanzo | 421102 |
| Uruanyaugani | 421102 |
| Amafum | 421102 |
| Uruchime | 421102 |
| Atukpolom | 421102 |
| Uruezebaluchia | 421102 |
| Awator | 421102 |
| Uruezewebo-Na | 421102 |
| Ebonano | 421102 |
| Urumegwalu | 421102 |
| Ebonato | 421102 |
| Urumkpoke | 421102 |
| Ezira | 421102 |
| Uruo-Kpalabani | 421102 |
| Obiagu Otenyi | 421102 |
| Uruoboa | 421102 |
| Umuanua | 421102 |
| Uruokoke | 421102 |
| Umudigba | 421102 |
| Uruokokwe | 421102 |
| Umudunu | 421102 |
| Uruonyejem | 421102 |
| Umueze | 421102 |
| Uruuze | 421102 |
| Umulu | 421102 |
| Urakwelora | 421102 |
| Uruakponalu | 421102 |