Mahammadpur is a village in Bhagwanpur Hat tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Mahammadpur was 3,483 which includes 1,769 males and 1,714 females. Mahammadpur covers 140 ha area. Pincode of Mahammadpur is 841408.