Kozhaiyur is a village in Kuthalam tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kozhaiyur was 1,668 which includes 818 males and 850 females. Kozhaiyur covers 277.09 ha area. Pincode of Kozhaiyur is 609805.