Thirumailadi is a village in Sirkali tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thirumailadi was 13,378 which includes 6,456 males and 6,922 females. Thirumailadi covers 1139.66 ha area. Pincode of Thirumailadi is 609102.