Rajapalayam is a village in Tiruchengode tehsil in district of Namakkal, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Rajapalayam was 5,787 which includes 2,959 males and 2,828 females. Rajapalayam covers 1097.04 ha area. Pincode of Rajapalayam is 637209.