Onnappagoundanahalli is a village in Pennagaram tehsil in district of Dharmapuri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Onnappagoundanahalli was 6,127 which includes 3,041 males and 3,086 females. Onnappagoundanahalli covers 732.19 ha area. Pincode of Onnappagoundanahalli is 636809.