Poonampalayam 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 Poonampalayam was 7,945 which includes 3,954 males and 3,991 females. Poonampalayam covers 1344.4 ha area. Pincode of Poonampalayam is 621009.