Viswanathapuram is a village in Hosur tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Viswanathapuram was 1,818 which includes 943 males and 875 females. Viswanathapuram covers 140.78 ha area. Pincode of Viswanathapuram is 635121.