The age distribution, , in Chapelle-sur-Moudon is; 48 children or 12.6% of the population are between 0 and 9 years old and 55 teenagers or 14.4% are between 10 and 19. Of the adult population, 38 people or 9.9% of the population are between 20 and 29 years old. 56 people or 14.7% are between 30 and 39, 65 people or 17.0% are between 40 and 49, and 52 people or 13.6% are between 50 and 59. The senior population distribution is 34 people or 8.9% of the population are between 60 and 69 years old, 18 people or 4.7% are between 70 and 79, there are 16 people or 4.2% who are between 80 and 89.