Karaiyappalaiyur is a village in Kodavasal tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Karaiyappalaiyur was 1,170 which includes 604 males and 566 females. Karaiyappalaiyur covers 409.22 ha area. Pincode of Karaiyappalaiyur is 612603.