Khairpur Sarai is a village in Bachhwara tehsil in district of Begusarai, Bihar, India. As per the data provided by Census of India in 2011, total population of Khairpur Sarai was 146 which includes 77 males and 69 females. Khairpur Sarai covers 12 ha area. Pincode of Khairpur Sarai is 851111.