 Of the population in the municipality, 390 or about 42.7% were born in Miège and lived there in 2000.There were 282 or 30.9% who were born in the same canton, while 101 or 11.1% were born somewhere else in Switzerland, and 104 or 11.4% were born outside of Switzerland., children and teenagers (0–19 years old) make up 25.5% of the population, while adults (20–64 years old) make up 59.9% and seniors (over 64 years old) make up 14.6%.