Harpur Madanpur is a village in Ziradei tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Harpur Madanpur was 1,048 which includes 488 males and 560 females. Harpur Madanpur covers 76 ha area. Pincode of Harpur Madanpur is 841245.