The age distribution, , in Vufflens-le-Château is; 103 children or 13.5% of the population are between 0 and 9 years old and 119 teenagers or 15.6% are between 10 and 19. Of the adult population, 61 people or 8.0% of the population are between 20 and 29 years old. 100 people or 13.1% are between 30 and 39, 134 people or 17.5% are between 40 and 49, and 108 people or 14.1% are between 50 and 59. The senior population distribution is 79 people or 10.3% of the population are between 60 and 69 years old, 47 people or 6.1% are between 70 and 79, there are 13 people or 1.7% who are between 80 and 89, and there is 1 person who is 90 and older.