Idayakottai is a village in Oddanchatram tehsil in district of Dindigul, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Idayakottai was 4,222 which includes 2,133 males and 2,089 females. Idayakottai covers 1800.22 ha area. Pincode of Idayakottai is 624704.