Kothamangalam 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 Kothamangalam was 5,980 which includes 2,973 males and 3,007 females. Kothamangalam covers 728.54 ha area. Pincode of Kothamangalam is 614715.