Chauk Mafi is a village in Campierganj tehsil in district of Gorakhpur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Chauk Mafi was 1,840 which includes 943 males and 897 females. Chauk Mafi covers 119.4 ha area. Pincode of Chauk Mafi is 273165.