Karmaini is a village in Mehdawal tehsil in district of Sant Kabir Nagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Karmaini was 2,169 which includes 1,102 males and 1,067 females. Karmaini covers 170.46 ha area. Pincode of Karmaini is 272171.