As per Provisional population figures of 2011 Census.

Area 2641Sq Km No. of Sub Disivions 3
No. of Blocks 20 No. of Police Station 20
No. of Gram Panchayats 323 No. of census villages 1764
No. of Municipalities 1 No. of Municipal Corporations 4
No. of Population(2011) 3943098 No. of Population(Chapra Nagar Parishad) 202,352