Jolarpettai is a railway town in Tirupattur district, Tamil Nadu, India. It is a commuter rail hub in Southern Railway, which is one of the largest Railway Junction in Tamil nadu. It is 7 km from district headquarter Tirupattur and 18 km from Vaniyambadi. As of 2011, the town had a population of 29,662 and covered an area of 13.06 km2. The town is divided into 18 wards.