Alangadu is a village in Thiruthuraipoondi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Alangadu was 3,364 which includes 1,603 males and 1,761 females. Alangadu covers 636.17 ha area. Pincode of Alangadu is 614704.