| Name | Status | Population census 1991-03-01 | Population census 2001-03-01 | |
|---|---|---|---|---|
| Bhojpur | District | 1,792,771 | 2,243,144 | o |
| Bihar | State | 64,530,554 | 82,998,509 |
| Name | Status | City of Outgrowth | Population census 1991-03-01 | Population census 2001-03-01 | |
|---|---|---|---|---|---|
| Arrah | Municipality | 157,082 | 203,380 | o | |
| Behea | Notified Area | 17,082 | 20,741 | o | |
| Jagdishpur | Municipality | 21,384 | 28,085 | o | |
| Koilwar | Notified Area | 10,263 | 19,928 | o | |
| Piro | Notified Area | 18,419 | 25,811 | o | |
| Shahpur | Notified Area | 11,254 | 14,469 | o |
Source: (1991) Rand McNally International Atlas 1994, School of Planning & Architecture (web).
(2001) Office of the Registrar General and Census Commissioner (web), Delimitation Commission of India (web).
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