28 PIN codes
| PIN code | Post offices | Taluk / tehsil |
|---|---|---|
| 843104 | Chak Sarmastpur Bo | – |
| 843116 | Gpitaunjhia Bo, Pitaunjhia Bo | – |
| 843117 | Bbasudeo Bo, Chak Shambhu Bo, Gaus Nagar Bo and 4 more | – |
| 843131 | Subhaigarh B.O | – |
| 843301 | Sitamarhi Ho, Shaktipith Chandidham So | – |
| 843302 | Janaki Asthan So, Koat Bazar So, Sitamarhi Bazar So and 27 more | – |
| 843311 | Athri So, Belahi Bo, Bhbhimpur Bo and 3 more | – |
| 843313 | Bairgania So, Akhta Bo, Ashogi Purshottam Bo and 8 more | – |
| 843314 | Bajpatti So, Awapur Bo, Baburban Bo and 17 more | – |
| 843315 | Barharwa So Sitamarhi, Basbitta Bo, Bokhtha Bo and 10 more | – |
| 843316 | Belsand So, Belahiya Bo, Bhandari Bo and 12 more | – |
| 843317 | Bhutahi So, B Jay Nagar Bo, Fulkahan Bo and 7 more | – |
| 843318 | Budhnagra Deorhi So, Bhaurgarah Bo, Bokhra Bo and 3 more | – |
| 843319 | Choraut So, Bbehta Bo, Dmathauna Bo and 4 more | – |
| 843320 | Janakpur Road So, Pupari Bazar So, B Dharmapur Bo and 20 more | – |
| 843322 | Majhaulia Estate So, Dighi Bo, Jogiwana Bo and 4 more | – |
| 843323 | Manikchowk So, B Dhanushi Bo, Baghari Bo and 7 more | – |
| 843324 | Parihar So, Andauli Bo, Baburban Bo and 21 more | – |
| 843325 | Parsauni So, Bakhari Bo, Bhulli Bo and 7 more | – |
| 843326 | Raipur So Sitamarhi, Balasath Bo, Banaul Bo and 7 more | – |
| 843327 | Riga So, Babhangama Bo, Bairiya Bo and 19 more | – |
| 843328 | Runnisaidpur So, Baligarh Bo, Bhanaspatti Bo and 6 more | – |
| 843330 | Sonbersa So, Araria Bo, Dalkawa Bo and 5 more | – |
| 843331 | Sursand So, Baghari Bo, Bakhari Bo and 14 more | – |
| 843332 | Majorganj So, Bagaha Bo, Bahera Bo and 8 more | – |
| 843333 | Nanpur So, B Jahidpur Bo, B Shantikutir Bo and 12 more | – |
| 847302 | Kharkha Bo, Nayatola Bo | – |
| 847307 | Chakauti Bo | – |
Bank branches and IFSC codes in Sitamarhi district 18 banks, 50 branches in the branch list. Listed by district, not by PIN code.