Kunwagaon is a village in Harraiya tehsil in district of Basti, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kunwagaon was 513 which includes 273 males and 240 females. Kunwagaon covers 70.01 ha area. Pincode of Kunwagaon is 272127.