Semarai is a village in Lakhimpur tehsil in district of Kheri, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Semarai was 2,575 which includes 1,390 males and 1,185 females. Semarai covers 374.52 ha area. Pincode of Semarai is 262802.