Sonkhar is a village in Bansi tehsil in district of Siddharthnagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Sonkhar was 3,899 which includes 2,073 males and 1,826 females. Sonkhar covers 385.59 ha area. Pincode of Sonkhar is N/A.