Langmet 1 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 Langmet 1 was 221 which includes 111 males and 110 females. Langmet 1 covers 66.2 ha area. Pincode of Langmet 1 is 782486.