| Name | Siwan |
|---|---|
| Country | India |
| State | Bihar |
| Division | Saran |
| Lok Sabha constituencies | Siwan |
| Vidhan Sabha constituencies | Siwan, Ziradei, Darauli, Raghunathpur, Daraunda, Barharia, Goriakothi, Maharajganj |
| Total Area | 2,219 km2 (857 sq mi) |
| Total Population | 3,330,465 |
| Population Density | 1,500/km2 (3,900/sq mi) |
| Literacy | 71.59 per cent |
| Sex ratio | 984 |
| Major highways | NH 85 |
