Kottaiyur is a village in THANDRAMPET tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kottaiyur was 2,587 which includes 1,307 males and 1,280 females. Kottaiyur covers 522.56 ha area. Pincode of Kottaiyur is 606753.