Hargaon is a village in Nichlaul tehsil in district of Mahrajganj, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Hargaon was 1,944 which includes 965 males and 979 females. Hargaon covers 206.46 ha area. Pincode of Hargaon is 273304.