Koothiyampettai 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 Koothiyampettai was 3,864 which includes 1,977 males and 1,887 females. Koothiyampettai covers 644.1 ha area. Pincode of Koothiyampettai is 609108.