Thalayamazhai 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 Thalayamazhai was 1,424 which includes 695 males and 729 females. Thalayamazhai covers 399.97 ha area. Pincode of Thalayamazhai is 611102.