In the 2001 Indian census Periyapalayam (Tamil Nadu, India) had a population of 5,420, of which 2,756 were male, and 2,664 were female.
upgraded Primary Health Center (PHC) which is behind the temple and also one Girls higher secondary school in Uthukottai Road.
It has several big companies like Winwind in Vengal village, Pennar in Kannigaipair, Sujana industries in Manjakaranai, Hydrabad chemicals in Kannigaipair and several warehouses Like Bata India Ltd (RDC) in Periyapalyam.
upgraded primary health center, Bhavani Amman Temple, Govt.
The residential side consists of The Post office of Periapalayam, Police Station, Govt.