Usilankulam is a village in Kovilpatti tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Usilankulam was 915 which includes 446 males and 469 females. Usilankulam covers 342.21 ha area. Pincode of Usilankulam is 628951.