The age distribution, , in Lully is; 89 children or 11.4% of the population are between 0 and 9 years old and 139 teenagers or 17.8% are between 10 and 19. Of the adult population, 81 people or 10.4% of the population are between 20 and 29 years old. 101 people or 13.0% are between 30 and 39, 119 people or 15.3% are between 40 and 49, and 103 people or 13.2% are between 50 and 59. The senior population distribution is 86 people or 11.0% of the population are between 60 and 69 years old, 38 people or 4.9% are between 70 and 79, there are 16 people or 2.1% who are between 80 and 89, and there are 7 people or 0.9% who are 90 and older.