Kunnathur is a village in Uthangarai tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kunnathur was 3,090 which includes 1,595 males and 1,495 females. Kunnathur covers 664.16 ha area. Pincode of Kunnathur is 635306.