The age distribution, , in Lully is; 105 children or 15.2% of the population are between 0 and 9 years old and 96 teenagers or 13.9% are between 10 and 19. Of the adult population, 80 people or 11.6% of the population are between 20 and 29 years old. 133 people or 19.2% are between 30 and 39, 98 people or 14.2% are between 40 and 49, and 83 people or 12.0% are between 50 and 59. The senior population distribution is 48 people or 6.9% of the population are between 60 and 69 years old, 30 people or 4.3% are between 70 and 79, there are 17 people or 2.5% who are between 80 and 89, and there are 2 people or 0.3% who are 90 and older.