Kadiapattinam is a village in Kalkulam tehsil in district of Kanniyakumari, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kadiapattinam was 26,589 which includes 13,417 males and 13,172 females. Kadiapattinam covers 1925.94 ha area. Pincode of Kadiapattinam is 629203.