Vizhunthamavadi is a village in Kilvelur tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Vizhunthamavadi was 6,608 which includes 3,259 males and 3,349 females. Vizhunthamavadi covers 929.23 ha area. Pincode of Vizhunthamavadi is 611112.