Gandhaunna is a village in Mariahu tehsil in district of Jaunpur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Gandhaunna was 5,604 which includes 2,620 males and 2,984 females. Gandhaunna covers 1184.96 ha area. Pincode of Gandhaunna is 222203.