Langtuk Rongphar is a village in Diphu tehsil in district of Karbi Anglong, Assam, India. As per the data provided by Census of India in 2011, total population of Langtuk Rongphar was 75 which includes 34 males and 41 females. Langtuk Rongphar covers 20 ha area. Pincode of Langtuk Rongphar is 782480.