Khanpur Mafi is a village in Rajpur tehsil in district of Buxar, Bihar, India. As per the data provided by Census of India in 2011, total population of Khanpur Mafi was 22 which includes 13 males and 9 females. Khanpur Mafi covers 11 ha area. Pincode of Khanpur Mafi is N/A.