Periamuthu is a village in Krishnagiri tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Periamuthu was 8,413 which includes 4,230 males and 4,183 females. Periamuthu covers 729.47 ha area. Pincode of Periamuthu is 635101.