Oppathavadi 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 Oppathavadi was 9,604 which includes 4,805 males and 4,799 females. Oppathavadi covers 3435.43 ha area. Pincode of Oppathavadi is 635104.