Langlongpak is a village in Donka tehsil in district of Karbi Anglong, Assam, India. As per the data provided by Census of India in 2011, total population of Langlongpak was 80 which includes 39 males and 41 females. Langlongpak covers 35 ha area. Pincode of Langlongpak is 782448.