Thirukkadaiyur is a village in Tharangambadi tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thirukkadaiyur was 6,244 which includes 3,082 males and 3,162 females. Thirukkadaiyur covers 793.38 ha area. Pincode of Thirukkadaiyur is 609311.