Thalaiyur is a village in Nannilam tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thalaiyur was 1,256 which includes 623 males and 633 females. Thalaiyur covers 243.45 ha area. Pincode of Thalaiyur is 609403.