Karapattu is a village in Ulundurpettai tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Karapattu was 1,897 which includes 959 males and 938 females. Karapattu covers 205.23 ha area. Pincode of Karapattu is 607107.