Sithanangur is a village in Ulundurpettai tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sithanangur was 1,835 which includes 920 males and 915 females. Sithanangur covers 259.11 ha area. Pincode of Sithanangur is 607107.