Sembiyanallur is a village in Nannilam tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sembiyanallur was 1,051 which includes 529 males and 522 females. Sembiyanallur covers 271.04 ha area. Pincode of Sembiyanallur is 609503.