Sithanvalur is a village in Valangaiman tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sithanvalur was 1,789 which includes 868 males and 921 females. Sithanvalur covers 586.31 ha area. Pincode of Sithanvalur is 612804.