 The age distribution, , in Untereggen is; 171 children or 19.1% of the population are between 0 and 9 years old and 131 teenagers or 14.6% are between 10 and 19.Of the adult population, 69 people or 7.7% of the population are between 20 and 29 years old.175 people or 19.5% are between 30 and 39, 120 people or 13.4% are between 40 and 49, and 99 people or 11.0% are between 50 and 59.