Thagattur Pethachikadu is a village in Vedaranyam tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thagattur Pethachikadu was 2,164 which includes 1,078 males and 1,086 females. Thagattur Pethachikadu covers 585.08 ha area. Pincode of Thagattur Pethachikadu is 614714.