Ilayathagudi South is a village in Tirupathur tehsil in district of Sivaganga, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ilayathagudi South was 5,190 which includes 2,520 males and 2,670 females. Ilayathagudi South covers 1164.94 ha area. Pincode of Ilayathagudi South is 630205.