The age distribution, , in Büren is; 74 children or 8.5% of the population are between 0 and 6 years old and 174 teenagers or 20.0% are between 7 and 19. Of the adult population, 46 people or 5.3% of the population are between 20 and 24 years old. 265 people or 30.5% are between 25 and 44, and 202 people or 23.2% are between 45 and 64. The senior population distribution is 95 people or 10.9% of the population are between 65 and 79 years old and there are 14 people or 1.6% who are over 80.