Unamancheri 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 Unamancheri was 3,399 which includes 1,911 males and 1,488 females. Unamancheri covers 862.98 ha area. Pincode of Unamancheri is 600048.