The age distribution, , in Bettens is; 46 children or 13.3% of the population are between 0 and 9 years old and 61 teenagers or 17.6% are between 10 and 19. Of the adult population, 32 people or 9.2% of the population are between 20 and 29 years old. 44 people or 12.7% are between 30 and 39, 82 people or 23.7% are between 40 and 49, and 38 people or 11.0% are between 50 and 59. The senior population distribution is 22 people or 6.4% of the population are between 60 and 69 years old, 10 people or 2.9% are between 70 and 79, there are 10 people or 2.9% who are between 80 and 89, and there is 1 person who is 90 and older.