The age distribution, , in Kienberg is; 62 children or 11.9% of the population are between 0 and 6 years old and 91 teenagers or 17.4% are between 7 and 19. Of the adult population, 11 people or 2.1% of the population are between 20 and 24 years old. 176 people or 33.7% are between 25 and 44, and 120 people or 23.0% are between 45 and 64. The senior population distribution is 44 people or 8.4% of the population are between 65 and 79 years old and there are 18 people or 3.4% who are over 80.