Chak Bairkhar is a village in Dudhi tehsil in district of Sonbhadra, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Chak Bairkhar was 67 which includes 41 males and 26 females. Chak Bairkhar covers 39.09 ha area. Pincode of Chak Bairkhar is 232221.