Alathur is a village in Sankarapuram tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Alathur was 5,875 which includes 3,007 males and 2,868 females. Alathur covers 1879.78 ha area. Pincode of Alathur is 606208.