L1 users: 33,200 (2011 census).
Kosi zone: Bhojpur district, Khartanga, Limkhim, Phedi, and Wasepla VDCs; Sankhuwasabha district, Mangtewa, Seduwa, and Yaphu VDCs; Sagarmatha zone: Solukhumbu district, in Hungu river valley, Bung, Chachalung, Chekma, Chhemsing, Chheskam, Gudel, Lucham, Namlung, Pelmang, Satdi, and Sotang villages.
6b (Threatened). Language of recognized indigenous nationality: Rai.
SOV; postpositions; noun head final; no noun classes or genders; content q-word initial; 1 prefix, up to 3 suffixes; clause constituents indicated by case-marking; verbal affixation marks person and number; ergativity; tense; no passives or voice; nontonal; 22 consonant and 6 vowel phonemes.
Devanagari script [Deva].
Exogamous clan marriage. The high number of Kulung reflect the tendency of smaller groups to consider themselves Kulung, but are not Kulung by origin. The Kulung possibly absorb smaller groups. Traditional religion.