Owerri Municipal is a Local Government Area in Imo State, Nigeria, serving as the state capital. Below are the postal codes for its various layouts and areas, grouped by the six-digit code assigned to each.

Aladinma Estate (Postal Code 460231)

Location Postal Code
Afikpo 460231
Amaze Njoku 460231
Arochukwu 460231
Arugo 460231
Egbema 460231
Etiti 460231
Ezioha 460231
Lake Nwaebere 460231
Mbano 460231
Ngor Okpala 460231
Ngwa 460231
Oguta 460231
Okeikpe 460231
Umuahia 460231

Aladinma Northern Extension (Postal Code 460232)

Location Postal Code
Bishop Court 460232
Configuration 460232
Fair child 460232
Isikwuato 460232
Other unnamed Rd. 460232
Waec 460232

Uzi Layout (Postal Code 460241)

Location Postal Code
Amadi 460241
Amaram 460241
Amaram Ext. 460241
Anokwu 460241
Chidomara 460241
Chikwere 460241
Christ Church Cl. 460241
Egbu Rd. 460241
Ejiaku 460241
Ekeada 460241
Ihugba 460241
Izii Ln. 460241
Kagba 460241
Lagos St. 460241
Madumere 460241
Mbaise 460241
Mere 460241
Odor 460241
Odueze St. 460241
Oguoma St. 460241
Okorie Rd. 460241
Onumiri St. 460241
Onyeche 460241
Oparaugo 460241
Oyima 460241
Ozubi St. 460241
School 460241
Tetlow 460241
Ukaegbu St. 460241
Zander 460241

Umueche (Postal Code 460261)

Location Postal Code
Amaigbo St. 460261
Edede St. 460261
Emekuku Ln. 460261
Emmanuel College L/out 460261
Enwereji Ln. 460261
Housa Qtrs. 460261
Nekede Td 460261
NEPA 460261
New Market 460261
Nworie Stream 460261
Ogugba 460261
Old Market Rd. 460261
Oparanozie St. 460261
Orlu St. 460261
Osina St. 460261
Rotobi St. 460261
Royce Rd. 460261
Uche St. 460261
Umezuruike St. 460261

Ikenegbu Layout (Postal Code 460242)

Location Postal Code
Akwa Ibom Market 460242
Baptist Church 460242
Cementry 460242
Chukwuma Nwonadi 460242
Dan Anyia Stadium 460242
Egbu Rd. 460242
Ekwema Cr. 460242
Govt. Trade Centre 460242
IIC Yard 460242
MCC Uratta Rd. 460242
Wetheral Rd. 460242

Umuodu (Postal Code 460243)

Location Postal Code
Abatoirs vet office 460243
Assumpta Pry/Nursery 460243
Fire Service Station 460243
I.B.C. compound 460243
Imo Newspapers 460243
Lobo Extention 460243
Old Aba Rd. 460243
Tanmeri Stream 460243
Timber Market 460243

Umuoyima / Emmanuel College Layout (Postal Code 460251)

Location Postal Code
Aba Rd. 460251
Nekede Rd. 460251
New Market 460251
Nworie St. 460251
Old Aba Rd. 460251
Tamari Stream Area 460251
Ubochi St. 460251

Nekede (Postal Code 460262)

Location Postal Code
Nekede Rd. 460262
New General Hospital Rd. 460262

New Owerri (Postal Code 460271)

Location Postal Code
I.T.V. 460271
New General Hospital 460271
Nworie Stream 460271
Owerri Girls Sec. School 460271
Port Harcourt-Owerri Rd. 460271
Qworld Bank Housing Rd. 460271

Arugo Layout (Postal Code 460281)

Location Postal Code
Akajiaku Estate 460281
Alvan Ikoku College of Edu. 460281
Chief Magistrate Court 460281
Euason Ind. 460281
Federal Medical Centre 460281
Fuason Estate 460281
Holy Christ College 460281
Life Line Assembly 460281
Mobile Police Post 460281
Motor Park 460281
Onitsha Rd. 460281
Orlu 460281
State Secretariat 460281

State High Court Area (Postal Code 460211)

Location Postal Code
Assumpta Ave. 460211
Cabinet Office 460211
Govt. Secondary School 460211
Modotel Ln. 460211
Mosque 460211
Motherless Babies Home 460211
Nigeria Prisons 460211
Police Qtrs. 460211
Shell Camp 460211
Staff Qtrs. 460211
State House 460211
State Police Headquarters-Clerks Qtrs. 460211

Imo State University Area (Postal Code 460222)

Location Postal Code
C.S.C. Secretariat 460222
Isreal Nwoba 460222
Mbari St. 460222
Ngozi HospitalIkenegbu Hospital 460222
Ohaozara St. 460222
Okigwe Rd. 460222
Owerri club 460222
SAMEK Rd. 460222

Ugwu Orji (Postal Code 460213)

Location Postal Code
All other unnamed St. 460213
Okigwe Rd. 460213
Samek Rd. 460213

Works Layout (Postal Code 460212)

Location Postal Code
Convent Nursery 460212
F.S.P. Nursery/Pry. Schl. 460212
First Ave. 460212
Fourth Ave. 460212
Madonna 460212
Orlu Rd. 460212
Second Ave. 460212
Shoe Industry 460212
Sixth Ave. 460212
Third Ave. 460212
Works Rd. 460212
Zonal Agric 460212

Amawom (Postal Code 460221)

Location Postal Code
Ajoku 460221
Alaenyi 460221
Douglas 460221
Ekeonunwa 460221
Enwereji 460221
Erekwerenwa 460221
Iheanocho 460221
Ironsi 460221
Mann 460221
NITEL 460221
Njemanze 460221
Njeribeako 460221
Njiribeako 460221
Nwaodo 460221
Odu Agu 460221
Okorie 460221
Old Market 460221
Old Stadium Ln. 460221
Onumonu 460221
Osuji 460221
Post Office 460221
Tetlow Rd. 460221
Uratta 460221