Karaiyur is a village in Tirupathur tehsil in district of Sivaganga, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Karaiyur was 3,985 which includes 1,979 males and 2,006 females. Karaiyur covers 1450.92 ha area. Pincode of Karaiyur is 630211.