Achamangalam is a village in Krishnagiri tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Achamangalam was 4,179 which includes 2,150 males and 2,029 females. Achamangalam covers 1269.65 ha area. Pincode of Achamangalam is 635108.