Poykkunam is a village in Sankarapuram tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Poykkunam was 2,736 which includes 1,362 males and 1,374 females. Poykkunam covers 633.85 ha area. Pincode of Poykkunam is 606401.