80 percent certain, based on the evidence available
~400 in Laos (as of 2014), and 149 in China (as of 2013)
SPEAKER NUMBER TRENDS
- MORE ON VITALITY
66 fluent speakers in China. No vitality info are available on those living in Laos.
The percentage of people who CANNOT speak Cosao:
age 0-5: 100%
age 6-15: 26.3%
age 16-25: 4.7％
age 26-50: 5%
age 51 and above: 0%
- OTHER LANGUAGES USED BY THE COMMUNITY
- LANGUAGE CONTEXT COMMENTS
They only speak Cosao among themselves. Exogamy is very common due to the low population number of the Cosao.
- Scripts (Writing system)
- pictographic glyphs