Siwaisinghpur is a village in Hayaghat tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Siwaisinghpur was 1,490 which includes 796 males and 694 females. Siwaisinghpur covers 60 ha area. Pincode of Siwaisinghpur is N/A.