Regadahalli is a village in Pappireddipatti tehsil in district of Dharmapuri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Regadahalli was 3,916 which includes 1,992 males and 1,924 females. Regadahalli covers 529.56 ha area. Pincode of Regadahalli is 635301.