Idappadi (also spelt as Edappadi or Edapadi) is a city and a municipality in Salem district in the state of Tamil Nadu, India. Idappadi was once known for its thriving powerloom industry. The economy is diversified. The main modes of income are agriculture, lorry & heavy truck transport, granite, textile powerloom, entertainment and foundry. It is third largest town in Salem Dt. next to Attur and Mettur. The rocks around the Idappadi is expected to have more number of rare minerals. The name is derived from a group of family name 'Edayar' (means the people who survived with Cow, Buffalo and house animals. Now it is an ideal place for peaceful life and harmony synchronize with nature living. The water was supplied by Cauvery river and 'Periya-yeri' (Big-lake) near Idappadi.