Poranthavakkam is a village in Chengalpattu tehsil in district of Kancheepuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Poranthavakkam was 922 which includes 487 males and 435 females. Poranthavakkam covers 83.38 ha area. Pincode of Poranthavakkam is 603105.