The age distribution, , in Essert-sous-Champvent is; 19 children or 12.6% of the population are between 0 and 9 years old and 19 teenagers or 12.6% are between 10 and 19. Of the adult population, 20 people or 13.2% of the population are between 20 and 29 years old. 24 people or 15.9% are between 30 and 39, 28 people or 18.5% are between 40 and 49, and 16 people or 10.6% are between 50 and 59. The senior population distribution is 5 people or 3.3% of the population are between 60 and 69 years old, 13 people or 8.6% are between 70 and 79, there are 7 people or 4.6% who are between 80 and 89.