Lalganj is Taluka (Tehsil) in Vaishali district of Bihar state. Lalganj has 14 areas (postal offices).
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 844117 | Dharhara Vaishali PIN Code | Vaishali | Lalganj | Sub Office |
| 844121 | Jaintipur PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Jalalpur PIN Code | Vaishali | Lalganj | Branch Office |
| 844119 | Kartahan PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Khanjahachak PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Lalganj Vaishali PIN Code | Vaishali | Lalganj | Sub Office |
| 844125 | Mani Bhakurahar PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Manikpur Pakri PIN Code | Vaishali | Lalganj | Branch Office |
| 844119 | Pachdamia PIN Code | Vaishali | Lalganj | Branch Office |
| 844117 | Paura PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Purkhauli PIN Code | Vaishali | Lalganj | Branch Office |
| 844123 | Rikhar PIN Code | Vaishali | Lalganj | Branch Office |
| 844121 | Sahdullahpur PIN Code | Vaishali | Lalganj | Branch Office |
| 844123 | Sathiauta Bhagwan PIN Code | Vaishali | Lalganj | Branch Office |