Siwadar is a village in Ghorawal tehsil in district of Sonbhadra, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Siwadar was 2,207 which includes 1,124 males and 1,083 females. Siwadar covers 1340.74 ha area. Pincode of Siwadar is 231210.