The age distribution, , in Coppet is; 348 children or 12.4% of the population are between 0 and 9 years old and 379 teenagers or 13.5% are between 10 and 19. Of the adult population, 266 people or 9.5% of the population are between 20 and 29 years old. 329 people or 11.7% are between 30 and 39, 499 people or 17.8% are between 40 and 49, and 393 people or 14.0% are between 50 and 59. The senior population distribution is 324 people or 11.6% of the population are between 60 and 69 years old, 193 people or 6.9% are between 70 and 79, there are 69 people or 2.5% who are between 80 and 89, and there are 3 people or 0.1% who are 90 and older.