Isuikwuato is a Local Government Area (LGA) in Abia State, Nigeria. The postal codes in Isuikwuato are primarily 441104 – 441106.
Here are the postal codes of the streets and districts in Isuikwuato:
Ezere
| Location | Postcode |
| Amaelen | 441104 |
| Amaja | 441104 |
| Amaohuru | 441104 |
| Umuagu | 441104 |
| Umuakwua | 441104 |
Achara-Uturu
| Location | Postcode |
| Amanyanwu | 441107 |
| Amidi | 441107 |
| Amokwe | 441107 |
| Eziama | 441107 |
| Ogwahia | 441107 |
| Onuzu | 441107 |
Imenyi
| Location | Postcode |
| Agbonelu | 441101 |
| Ahaba-Ehuma | 441101 |
| Amaeke | 441101 |
| Amahia/Amaogudu | 441101 |
| Amiyi Ahaba | 441101 |
| Anume | 441101 |
| Eluama | 441101 |
| Ihenzu | 441101 |
| Ihiokwe | 441101 |
| Mbalano | 441101 |
| Obayi | 441101 |
| Ohonja | 441101 |
| Ohoroho | 441101 |
Isu Amawu
| Location | Postcode |
| Amaise | 441106 |
| Amaobu-Nkuma | 441106 |
| Amaobuaja | 441106 |
| Ekebe | 441106 |
| Obinohia | 441106 |
| Obodo | 441106 |
| Uloma | 441106 |
| Umuama | 441106 |
| Umuebere Aja | 441106 |
| Umuebere Nkuma | 441106 |
| Umuemoko | 441106 |
| Umuokogbuo | 441106 |
Mbaugwu
| Location | Postcode |
| Akpukpa | 441108 |
| Isunabo | 441108 |
| Ndundu | 441108 |
| Ngodo-Ugwu | 441108 |
| Nvururu | 441108 |
| Ugiri | 441108 |
| Umuamara | 441108 |
Ogudo-Asa
| Location | Postcode |
| Acha | 441103 |
| Amaibo | 441103 |
| Amaiyi-obinohia | 441103 |
| Amaiyi-Uhu | 441103 |
| Nunya | 441103 |
Ohaise
| Location | Postcode |
| Acha | 441102 |
| Amaba-Oboro | 441102 |
| Amaogodu | 441102 |
| Amokwe | 441102 |
| Amuta | 441102 |
| Echiele | 441102 |
| Ikpa | 441102 |
| Ndiagidi | 441102 |
| Ndiohia | 441102 |
| Otampa | 441102 |
| Umuakpumsi | 441102 |
| Umuansuo | 441102 |
| Umuohoroko | 441102 |
Umun-Nekwu
| Location | Postcode |
| Amawo | 441105 |
| Eziama | 441105 |
| Ohaukali | 441105 |
| Ugwuntu | 441105 |
| Umuezebele | 441105 |
| Umuihu | 441105 |
| Umura | 441105 |