 Of the population in the municipality, 137 or about 38.2% were born in Ulmiz and lived there in 2000.There were 37 or 10.3% who were born in the same canton, while 162 or 45.1% were born somewhere else in Switzerland, and 20 or 5.6% were born outside of Switzerland., children and teenagers (0–19 years old) make up 23.7% of the population, while adults (20–64 years old) make up 53.8% and seniors (over 64 years old) make up 22.6%.