Post Code of Sylhet Division
| District | Thana | Sub Office | Post Code |
| Sunamganj | Bishamsarpur | Bishamsapur | 3010 |
| Sunamganj | Chhatak | Chhatak | 3080 |
| Sunamganj | Chhatak | Chhatak Cement Facto | 3081 |
| Sunamganj | Chhatak | Chhatak Paper Mills | 3082 |
| Sunamganj | Chhatak | Gabindaganj | 3083 |
| Sunamganj | Chhatak | Gabindaganj Natun Ba | 3084 |
| Sunamganj | Chhatak | Khurma | 3085 |
| Sunamganj | Chhatak | Moinpur | 3086 |
| Sunamganj | Chhatak | jahidpur | 3087 |
| Sunamganj | Chhatak | Islamabad | 3088 |
| Sunamganj | Chhatak | Chourangi Bazar | 3893 |
| Sunamganj | Dhirai Chandpur | Dhirai Chandpur | 3040 |
| Sunamganj | Dhirai Chandpur | Jagdal | 3041 |
| Sunamganj | Duara bazar | Duara bazar | 3070 |
| Sunamganj | Ghungiar | Ghungiar | 3050 |
| Sunamganj | Jagnnathpur | Jagnnathpur | 3060 |
| Sunamganj | Jagnnathpur | Syedpur | 3061 |
| Sunamganj | Jagnnathpur | Atuajan | 3062 |
| Sunamganj | Jagnnathpur | Hasan Fatemapur | 3063 |
| Sunamganj | Jagnnathpur | Rasulganj | 3064 |
| Sunamganj | Jagnnathpur | Shiramsi | 3065 |
| Sunamganj | Sachna | Sachna | 3020 |
| Sunamganj | Sunamganj Sadar | Sunamganj Sadar | 3000 |
| Sunamganj | Sunamganj Sadar | Pagla | 3001 |
| Sunamganj | Sunamganj Sadar | Patharia | 3002 |
| Sunamganj | Tahirpur | Tahirpur | 3030 |
| Sylhet | Balaganj | Balaganj | 3120 |
| Sylhet | Balaganj | Karua | 3121 |
| Sylhet | Balaganj | Brahman Shashon | 3122 |
| Sylhet | Balaganj | Tajpur | 3123 |
| Sylhet | Balaganj | Goala Bazar | 3124 |
| Sylhet | Balaganj | Begumpur | 3125 |
| Sylhet | Balaganj | Omarpur | 3126 |
| Sylhet | Balaganj | Kathal Khair | 3127 |
| Sylhet | Balaganj | Gaharpur | 3128 |
| Sylhet | Balaganj | Natun Bazar | 3129 |
| Sylhet | Bianibazar | Bianibazar | 3170 |
| Sylhet | Bianibazar | jaldup | 3171 |
| Sylhet | Bianibazar | Mathiura | 3172 |
| Sylhet | Bianibazar | Kurar bazar | 3173 |
| Sylhet | Bianibazar | Salia bazar | 3174 |
| Sylhet | Bianibazar | Churkai | 3175 |
| Sylhet | Bishwanath | Bishwanath | 3130 |
| Sylhet | Bishwanath | Dashghar | 3131 |
| Sylhet | Bishwanath | Doulathpur | 3132 |
| Sylhet | Bishwanath | Deokalas | 3133 |
| Sylhet | Bishwanath | Singer kanch | 3134 |
| Sylhet | Fenchuganj | Fenchuganj | 3116 |
| Sylhet | Fenchuganj | Fenchuganj SareKarkh | 3117 |
| Sylhet | Goainhat | Goainhat | 3150 |
| Sylhet | Goainhat | Jaflong | 3151 |
| Sylhet | Goainhat | Chiknagul | 3152 |
| Sylhet | Gopalganj | Gopalgannj | 3160 |
| Sylhet | Gopalganj | Dhaka Dakkhin | 3161 |
| Sylhet | Gopalganj | Dakkhin Bhadashore | 3162 |
| Sylhet | Gopalganj | Ranaping | 3163 |
| Sylhet | Gopalganj | banigram | 3164 |
| Sylhet | Gopalganj | Chandanpur | 3165 |
| Sylhet | Jaintapur | Jainthapur | 3156 |
| Sylhet | Jakiganj | Jakiganj | 3190 |
| Sylhet | Jakiganj | Ichhamati | 3191 |
| Sylhet | Kanaighat | Kanaighat | 3180 |
| Sylhet | Kanaighat | Chatulbazar | 3181 |
| Sylhet | Kanaighat | Manikganj | 3182 |
| Sylhet | Kanaighat | Gachbari | 3183 |
| Sylhet | Kompanyganj | Kompanyganj | 3140 |
| Sylhet | Sylhet Sadar | Sylhe Sadar | 3100 |
| Sylhet | Sylhet Sadar | Sylhet Cadet Col | 3101 |
| Sylhet | Sylhet Sadar | Sylhet Biman Bondar | 3102 |
| Sylhet | Sylhet Sadar | Khadimnagar | 3103 |
| Sylhet | Sylhet Sadar | Jalalabad Cantoment | 3104 |
| Sylhet | Sylhet Sadar | Silam | 3105 |
| Sylhet | Sylhet Sadar | Birahimpur | 3106 |
| Sylhet | Sylhet Sadar | Jalalabad | 3107 |
| Sylhet | Sylhet Sadar | Mogla | 3108 |
| Sylhet | Sylhet Sadar | Ranga Hajiganj | 3109 |
| Sylhet | Sylhet Sadar | Kadamtali | 3111 |
| Sylhet | Sylhet Sadar | Kamalbazer | 3112 |
| Sylhet | Sylhet Sadar | Lalbazar | 3113 |
| Sylhet | Sylhet Sadar | Shahajalal Science & | 3114 |
| Moulvibazar | Baralekha | Baralekha | 3250 |
| Moulvibazar | Baralekha | Juri | 3251 |
| Moulvibazar | Baralekha | Dhakkhinbag | 3252 |
| Moulvibazar | Baralekha | Purbashahabajpur | 3253 |
| Moulvibazar | Kamalganj | Kamalganj | 3220 |
| Moulvibazar | Kamalganj | Keramatnaga | 3221 |
| Moulvibazar | Kamalganj | Patrakhola | 3222 |
| Moulvibazar | Kamalganj | Shamsher Nagar | 3223 |
| Moulvibazar | Kamalganj | Munshibazar | 3224 |
| Moulvibazar | Kulaura | Kulaura | 3230 |
| Moulvibazar | Kulaura | Tillagaon | 3231 |
| Moulvibazar | Kulaura | Langla | 3232 |
| Moulvibazar | Kulaura | Prithimpasha | 3233 |
| Moulvibazar | Kulaura | Kajaldhara | 3234 |
| Moulvibazar | Kulaura | Karimpur | 3235 |
| Moulvibazar | Kulaura | Baramchal | 3237 |
| Moulvibazar | Moulvibazar Sadar | Moulvibazar Sadar | 3200 |
| Moulvibazar | Moulvibazar Sadar | Barakapan | 3201 |
| Moulvibazar | Moulvibazar Sadar | Monumukh | 3202 |
| Moulvibazar | Moulvibazar Sadar | Afrozganj | 3203 |
| Moulvibazar | Rajnagar | Rajnagar | 3240 |
| Moulvibazar | Srimangal | Srimangal | 3210 |
| Moulvibazar | Srimangal | Narain Chora | 3211 |
| Moulvibazar | Srimangal | Kalighat | 3212 |
| Moulvibazar | Srimangal | Khejurichhara | 3213 |
| Moulvibazar | Srimangal | Satgaon | 3214 |
| Hobiganj | Azmireeganj | Azmireeganj | 3360 |
| Hobiganj | Bahubal | Bahubal | 3310 |
| Hobiganj | Baniachang | Baniachang | 3350 |
| Hobiganj | Baniachang | Jatrapasha | 3351 |
| Hobiganj | Baniachang | Kadirganj | 3352 |
| Hobiganj | Chunarughat | Chunarughat | 3320 |
| Hobiganj | Chunarughat | Chandpurbagan | 3321 |
| Hobiganj | Chunarughat | Narapati | 3322 |
| Hobiganj | Hobiganj Sadar | Hobiganj Sadar | 3300 |
| Hobiganj | Hobiganj Sadar | Shaestaganj | 3301 |
| Hobiganj | Hobiganj Sadar | Gopaya | 3302 |
| Hobiganj | Kalauk | Kalauk | 3340 |
| Hobiganj | Kalauk | Lakhai | 3341 |
| Hobiganj | Madhabpur | Madhabpur | 3330 |
| Hobiganj | Madhabpur | Itakhola | 3331 |
| Hobiganj | Madhabpur | Shahajibazar | 3332 |
| Hobiganj | Madhabpur | Saihamnagar | 3333 |
| Hobiganj | Nabiganj | Nabiganj | 3370 |
| Hobiganj | Nabiganj | Goplarbazar | 3371 |
| Hobiganj | Nabiganj | Golduba | 3372 |
| Hobiganj | Nabiganj | Digalbak | 3373 |
| Hobiganj | Nabiganj | Inathganj | 3374 |