3,070,000 in Laos (2005 census). L2 users: 800,000 in Laos. Total users in all countries: 4,053,700 (as L1: 3,253,700; as L2: 800,000).
Widespread throughout Mekong river valley, Luang Prabang Province south to the Cambodia border; Lao-Khrang dialect is in Nakhonsawan and Nakhon Pathom areas.
1 (National). Statutory national language (2003, Constitution, Article 89).
Luang Prabang, Vientiane (Wiang Jan), Savannakhet (Suwannakhet), Pakse, Lao-Kao, Lao-Khrang. Dialect subgroup with Northeastern Tai [tts] of Thailand.
SVO; 23 consonants, 20 vowels, 3 diphthongs; tonal (6 tones).
Also use Lao [lao].
Lao script [Laoo].
The Lao Kao migrated to Thailand and are in Nan, Loei, Saraburi, and elsewhere. Buddhist, Christian, traditional religion.