Districts of BIHAR state
| District | Total Post Offices |
|---|---|
| Araria | 154 |
| Arwal | 13 |
| Aurangabad(BH) | 278 |
| Banka | 199 |
| Begusarai | 237 |
| Bhagalpur | 267 |
| Bhojpur | 300 |
| Buxar | 195 |
| Darbhanga | 376 |
| East Champaran | 424 |
| Gaya | 414 |
| Gopalganj | 215 |
| Jamui | 149 |
| Jehanabad | 134 |
| Kaimur (Bhabua) | 132 |
| Katihar | 183 |
| Khagaria | 149 |
| Kishanganj | 90 |
| Lakhisarai | 89 |
| Madhepura | 203 |
| Madhubani | 414 |
| Munger | 124 |
| Muzaffarpur | 437 |
| Nalanda | 333 |
| Nawada | 193 |
| Patna | 447 |
| Purnia | 191 |
| Rohtas | 264 |
| Saharsa | 169 |
| Samastipur | 386 |
| Saran | 388 |
| Sheikhpura | 84 |
| Sheohar | 34 |
| Sitamarhi | 306 |
| Siwan | 322 |
| Supaul | 209 |
| Vaishali | 285 |
| West Champaran | 276 |