Karaiyur is a village in Ponnamaravathi tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Karaiyur was 6,679 which includes 3,309 males and 3,370 females. Karaiyur covers 1744.91 ha area. Pincode of Karaiyur is 622002.