Raghunathpur is a village in Paharpur tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Raghunathpur was 1,807 which includes 918 males and 889 females. Raghunathpur covers 88.3 ha area. Pincode of Raghunathpur is 845422.