Pillaiyarnatham is a village in Srivilliputhur tehsil in district of Virudhunagar, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Pillaiyarnatham was 3,800 which includes 1,891 males and 1,909 females. Pillaiyarnatham covers 790.11 ha area. Pincode of Pillaiyarnatham is 626125.