 Of the population in the municipality 1,338 or about 53.6% were born in Chamoson and lived there in 2000.There were 549 or 22.0% who were born in the same canton, while 258 or 10.3% were born somewhere else in Switzerland, and 275 or 11.0% were born outside of Switzerland.The age distribution of the population () is children and teenagers (0–19 years old) make up 21.9% of the population, while adults (20–64 years old) make up 58.7% and seniors (over 64 years old) make up 19.4%.