Kunnathur is a village in Iluppur tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kunnathur was 3,299 which includes 1,683 males and 1,616 females. Kunnathur covers 2596.64 ha area. Pincode of Kunnathur is 621316.