Thennampillaiyur is a village in Attur tehsil in district of Salem, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thennampillaiyur was 1,157 which includes 571 males and 586 females. Thennampillaiyur covers 327.76 ha area. Pincode of Thennampillaiyur is 636610.