The age distribution, , in Sarzens is; 12 children or 14.8% of the population are between 0 and 9 years old and 14 teenagers or 17.3% are between 10 and 19. Of the adult population, 3 people or 3.7% of the population are between 20 and 29 years old. 11 people or 13.6% are between 30 and 39, 17 people or 21.0% are between 40 and 49, and 9 people or 11.1% are between 50 and 59. The senior population distribution is 5 people or 6.2% of the population are between 60 and 69 years old, 9 people or 11.1% are between 70 and 79, there is 1 person who is 80 and 89.