Raghunathpur is a Sub-District (Tehsil/Block/Mandal) in the Siwan District of Bihar. As par Census 2011 information the sub-district code of Raghunathpur is 01244. There are about 19 sub-districts in Siwan and Raghunathpur is one of them. Andar, Barharia, Basantpur, Bhagwanpur Hat, Darauli, Daraundha, Goriakothi, Guthani, Hasanpura, Hussainganj, Lakri Nabiganj, Maharajganj, Mairwa, Nautan, Pachrukhi, Siswan, Siwan, Ziradei etc. are other sub-districts in Siwan.There are about 123 villages in Raghunathpur sub-district, which you can browse from villages list.