Kilapidagai is a village in Kilvelur tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kilapidagai was 2,662 which includes 1,325 males and 1,337 females. Kilapidagai covers 593 ha area. Pincode of Kilapidagai is 611111.