Thandagoundarahalli is a village in Krishnagiri tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thandagoundarahalli was 2,339 which includes 1,208 males and 1,131 females. Thandagoundarahalli covers 520.21 ha area. Pincode of Thandagoundarahalli is 635122.