Koothur 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 Koothur was 2,877 which includes 1,400 males and 1,477 females. Koothur covers 261.37 ha area. Pincode of Koothur is 611105.