Rangajan No 1 is a village in Tengakhat tehsil in district of Dibrugarh, Assam, India. As per the data provided by Census of India in 2011, total population of Rangajan No 1 was 266 which includes 137 males and 129 females. Rangajan No 1 covers 166 ha area. Pincode of Rangajan No 1 is N/A.