Thathamangalam is a village in Manachanallur tehsil in district of Tiruchirappalli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thathamangalam was 2,834 which includes 1,398 males and 1,436 females. Thathamangalam covers 1086.22 ha area. Pincode of Thathamangalam is 621005.