Ratanpura is a village in Maharajganj tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Ratanpura was 2,321 which includes 1,152 males and 1,169 females. Ratanpura covers 98.43 ha area. Pincode of Ratanpura is N/A.