Pinnathur is a village in Thiruthuraipoondi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Pinnathur was 3,608 which includes 1,780 males and 1,828 females. Pinnathur covers 679.09 ha area. Pincode of Pinnathur is 614706.