Langtukthepi 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 Langtukthepi was 213 which includes 110 males and 103 females. Langtukthepi covers 36 ha area. Pincode of Langtukthepi is 782486.