Illalur is a village in Chengalpattu tehsil in district of Kancheepuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Illalur was 2,446 which includes 1,232 males and 1,214 females. Illalur covers 979.89 ha area. Pincode of Illalur is 603110.