 Of the population in the municipality 771 or about 84.4% were born in Isérables and lived there in 2000.There were 65 or 7.1% who were born in the same canton, while 21 or 2.3% were born somewhere else in Switzerland, and 19 or 2.1% 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 60% and seniors (over 64 years old) make up 18.2%.