Jamauniya Mafi 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 Jamauniya Mafi was 552 which includes 295 males and 257 females. Jamauniya Mafi covers 7132.23 ha area. Pincode of Jamauniya Mafi is 272129.