Renganathapuram is a village in Mannargudi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Renganathapuram was 1,847 which includes 949 males and 898 females. Renganathapuram covers 568.29 ha area. Pincode of Renganathapuram is 614717.