Kathiavadi is a village in Wallajah tehsil in district of Vellore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kathiavadi was 3,525 which includes 1,728 males and 1,797 females. Kathiavadi covers 732.26 ha area. Pincode of Kathiavadi is 632509.