The age distribution, , in Eggenwil is; 76 children or 9.4% of the population are between 0 and 9 years old and 86 teenagers or 10.6% are between 10 and 19. Of the adult population, 95 people or 11.7% of the population are between 20 and 29 years old. 102 people or 12.6% are between 30 and 39, 155 people or 19.1% are between 40 and 49, and 150 people or 18.5% are between 50 and 59. The senior population distribution is 92 people or 11.4% of the population are between 60 and 69 years old, 45 people or 5.6% are between 70 and 79, there are 6 people or 0.7% who are between 80 and 89,and there are 3 people or 0.4% who are 90 and older.