The age distribution, , in Aigle is; 3,871 children or 10.0% of the population are between 0 and 9 years old and 5,803 teenagers or 14.9% are between 10 and 19. Of the adult population, 4,945 people or 12.7% of the population are between 20 and 29 years old. 4,632 people or 11.9% are between 30 and 39, 5,868 people or 15.1% are between 40 and 49, and 5,034 people or 12.9% are between 50 and 59. The senior population distribution is 4,297 people or 11.1% of the population are between 60 and 69 years old, 2,670 people or 6.9% are between 70 and 79, there are 1,486 people or 3.8% who are 80 and 89, and there are 274 people or 0.7% who are 90 and older.