Sinnamalaikkundru is a village in Ettayapuram tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sinnamalaikkundru was 1,133 which includes 572 males and 561 females. Sinnamalaikkundru covers 1286.81 ha area. Pincode of Sinnamalaikkundru is 628902.