| District | Thana | SubOffice | Post Code |
|---|---|---|---|
| Chittagong | Chittagong Sadar | Chittagong GPO | 4000 |
| Chittagong | Chittagong Sadar | Chittagong Bandar | 4100 |
| Chittagong | Chittagong Sadar | Pahartoli | 4202 |
| Chittagong | Chittagong Sadar | Chawkbazar | 4203 |
| Chittagong | Chittagong Sadar | Patenga | 4204 |
| Chittagong | Chittagong Sadar | Chittagong Airport | 4205 |
| Chittagong | Chittagong Sadar | Jaldia Merine Accade | 4206 |
| Chittagong | Chittagong Sadar | Firozshah | 4207 |
| Chittagong | Chittagong Sadar | Mohard | 4208 |
| Chittagong | Chittagong Sadar | Chitt. Politechnic In | 4209 |
| Chittagong | Chittagong Sadar | Bayezid Bostami | 4210 |
| Chittagong | Chittagong Sadar | Amin Jute Mills | 4211 |
| Chittagong | Chittagong Sadar | Chandgaon | 4212 |
| Chittagong | Chittagong Sadar | Wazedia | 4213 |
| Chittagong | Chittagong Sadar | Jalalabad | 4214 |
| Chittagong | Chittagong Sadar | Anandabazar | 4215 |
| Chittagong | Chittagong Sadar | Halishahar | 4216 |
| Chittagong | Chittagong Sadar | North Katuli | 4217 |
| Chittagong | Chittagong Sadar | Chitt. Sailers Colon | 4218 |
| Chittagong | Chittagong Sadar | Chitt. Customs Acca | 4219 |
| Chittagong | Chittagong Sadar | Chitt. Cantonment | 4220 |
| Chittagong | Chittagong Sadar | Al- Amin Baria Madra | 4221 |
| Chittagong | Chittagong Sadar | Middle Patenga | 4222 |
| Chittagong | Chittagong Sadar | Export Processing | 4223 |
| Chittagong | Chittagong Sadar | Rampura TSO | 4224 |
| Chittagong | Chittagong Sadar | Halishshar | 4225 |
| Chittagong | Chittagong Sadar | North Halishahar | 4226 |
| Chittagong | Sandwip | Sandwip | 4300 |
| Chittagong | Sandwip | Shiberhat | 4301 |
| Chittagong | Sandwip | Urirchar | 4302 |
| Chittagong | Sitakunda | Sitakunda | 4310 |
| Chittagong | Sitakunda | Baroidhala | 4311 |
| Chittagong | Sitakunda | Barabkunda | 4312 |
| Chittagong | Sitakunda | Bawashbaria | 4313 |
| Chittagong | Sitakunda | Kumira | 4314 |
| Chittagong | Sitakunda | Bhatiari | 4315 |
| Chittagong | Sitakunda | Fouzdarhat | 4316 |
| Chittagong | Sitakunda | Jafrabad | 4317 |
| Chittagong | Mirsharai | Mirsharai | 4320 |
| Chittagong | Mirsharai | Abutorab | 4321 |
| Chittagong | Mirsharai | Darrogahat | 4322 |
| Chittagong | Mirsharai | Bharawazhat | 4323 |
| Chittagong | Mirsharai | Joarganj | 4324 |
| Chittagong | Mirsharai | Azampur | 4325 |
| Chittagong | Mirsharai | Korerhat | 4327 |
| Chittagong | Mirsharai | Mohazanhat | 4328 |
| Chittagong | Hathazari | Hathazari | 4330 |
| Chittagong | Hathazari | Chitt.University | 4331 |
| Chittagong | Hathazari | Gorduara | 4332 |
| Chittagong | Hathazari | Katirhat | 4333 |
| Chittagong | Hathazari | Mirzapur | 4334 |
| Chittagong | Hathazari | Fatahabad | 4335 |
| Chittagong | Hathazari | Nuralibari | 4337 |
| Chittagong | Hathazari | Yunus Nagar | 4338 |
| Chittagong | Hathazari | Madrasa | 4339 |
| Chittagong | Rouzan | Rouzan | 4340 |
| Chittagong | Rouzan | Beenajuri | 4341 |
| Chittagong | Rouzan | Kundeshwari | 4342 |
| Chittagong | Rouzan | Gahira | 4343 |
| Chittagong | Rouzan | jagannath Hat | 4344 |
| Chittagong | Rouzan | Fatepur | 4345 |
| Chittagong | Rouzan | Guzra Noapara | 4346 |
| Chittagong | Rouzan | Dewanpur | 4347 |
| Chittagong | Rouzan | Mohamuni | 4348 |
| Chittagong | Rouzan | B.I.T Post Office | 4349 |
| Chittagong | Fatikchhari | Fatikchhari | 4350 |
| Chittagong | Fatikchhari | Nanupur | 4351 |
| Chittagong | Fatikchhari | Bhandar Sharif | 4352 |
| Chittagong | Fatikchhari | Najirhat | 4353 |
| Chittagong | Fatikchhari | Harualchhari | 4354 |
| Chittagong | Fatikchhari | Narayanhat | 4355 |
| Chittagong | Rangunia | Rangunia | 4360 |
| Chittagong | Rangunia | Dhamair | 4361 |
| Chittagong | Boalkhali | Kanungopara | 4363 |
| Chittagong | Boalkhali | Saroatoli | 4364 |
| Chittagong | Boalkhali | Iqbal Park | 4365 |
| Chittagong | Boalkhali | Boalkhali | 4366 |
| Chittagong | Boalkhali | Sakpura | 4367 |
| Chittagong | Boalkhali | Kadurkhal | 4368 |
| Chittagong | Boalkhali | Charandwip | 4369 |
| Chittagong | Patia Head Office | Patia Head Office | 4370 |
| Chittagong | Patia Head Office | Budhpara | 4371 |
| Chittagong | Anawara | Anowara | 4376 |
| Chittagong | Anawara | Paroikora | 4377 |
| Chittagong | Anawara | Battali | 4378 |
| Chittagong | East Joara | East Joara | 4380 |
| Chittagong | East Joara | Gachbaria | 4381 |
| Chittagong | East Joara | Dohazari | 4382 |
| Chittagong | East Joara | Barma | 4383 |
| Chittagong | Satkania | Satkania | 4386 |
| Chittagong | Satkania | Baitul Ijjat | 4387 |
| Chittagong | Satkania | Bazalia | 4388 |
| Chittagong | Jaldi | Jaldi | 4390 |
| Chittagong | Jaldi | Khan Bahadur Bazar | 4391 |
| Chittagong | Jaldi | Gunagari | 4392 |
| Chittagong | Jaldi | Banigram | 4393 |
| Chittagong | Lohagara | Lohagara | 4396 |
| Chittagong | Lohagara | Padua | 4397 |
| Chittagong | Lohagara | Chaunti | 4398 |
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