The age distribution, , in Dompierre is; 21 children or 8.3% of the population are between 0 and 9 years old and 38 teenagers or 15.0% are between 10 and 19. Of the adult population, 23 people or 9.1% of the population are between 20 and 29 years old. 31 people or 12.3% are between 30 and 39, 41 people or 16.2% are between 40 and 49, and 37 people or 14.6% are between 50 and 59. The senior population distribution is 24 people or 9.5% of the population are between 60 and 69 years old, 19 people or 7.5% are between 70 and 79, there are 16 people or 6.3% who are between 80 and 89, and there are 3 people or 1.2% who are 90 and older.