Kunnathur is a village in Polur tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kunnathur was 2,912 which includes 1,437 males and 1,475 females. Kunnathur covers 485.9 ha area. Pincode of Kunnathur is 606803.