Pincode 841226 is a 6-digit postal code serving 4 post offices in Siwan district, Bihar. Siwan HO is the Head Post Office for this area, located at 26.2270°N, 84.3564°E. The first digit ‘8’ identifies the Bihar postal region; the full code pinpoints the Siwan delivery zone.
| Post Office | Type |
|---|---|
| Siwan HO | Head Post Office |
| Chapra Road SO | Post Office |
| Siwan Chowk Bazar SO | Post Office |
| Mahodipur BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Siwan, Bihar. Map data: OpenStreetMap, CARTO.