Periyanahalli is a village in Palakkodu tehsil in district of Dharmapuri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Periyanahalli was 7,388 which includes 3,909 males and 3,479 females. Periyanahalli covers 886.42 ha area. Pincode of Periyanahalli is 635205.