The age distribution, , in Valeyres-sous-Rances is; 50 children or 9.9% of the population are between 0 and 9 years old and 89 teenagers or 17.6% are between 10 and 19. Of the adult population, 67 people or 13.2% of the population are between 20 and 29 years old. 56 people or 11.0% are between 30 and 39, 90 people or 17.8% are between 40 and 49, and 73 people or 14.4% are between 50 and 59. The senior population distribution is 39 people or 7.7% of the population are between 60 and 69 years old, 25 people or 4.9% are between 70 and 79, there are 13 people or 2.6% who are between 80 and 89, and there are 5 people or 1.0% who are 90 and older.