Achamangalam is a village in Tirupathur tehsil in district of Vellore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Achamangalam was 7,201 which includes 3,673 males and 3,528 females. Achamangalam covers 615.69 ha area. Pincode of Achamangalam is 635601.