Kottaiyur is a village in Natham tehsil in district of Dindigul, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kottaiyur was 3,925 which includes 1,993 males and 1,932 females. Kottaiyur covers 1053.06 ha area. Pincode of Kottaiyur is 624405.