Kodaiyur is a village in Aravakurichi tehsil in district of Karur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kodaiyur was 3,214 which includes 1,576 males and 1,638 females. Kodaiyur covers 1695.69 ha area. Pincode of Kodaiyur is 639109.