There are 9 post offices under PIN code 811312.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Anandpur B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 2 | Arbaria B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 3 | Dighi B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 4 | Domamarhar B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 5 | Gaura B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 6 | Kala B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 7 | Laxmipur (Jamui) S.O | Sub Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 8 | Matia B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |
| 9 | Telia Dih B.O | Branch Office | Delivery | Laxmipur | Jamui | Monghyr | Patna Hq | Bihar | Bihar |