Unnankulam is a village in Nanguneri tehsil in district of Tirunelveli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Unnankulam was 2,300 which includes 1,155 males and 1,145 females. Unnankulam covers 1814.4 ha area. Pincode of Unnankulam is 627108.