Achampadu is a village in Radhapuram tehsil in district of Tirunelveli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Achampadu was 2,947 which includes 1,382 males and 1,565 females. Achampadu covers 1588.45 ha area. Pincode of Achampadu is 627652.