The age distribution, , in Gebenstorf is; 409 children or 8.9% of the population are between 0 and 9 years old and 510 teenagers or 11.1% are between 10 and 19. Of the adult population, 651 people or 14.1% of the population are between 20 and 29 years old. 637 people or 13.8% are between 30 and 39, 759 people or 16.5% are between 40 and 49, and 700 people or 15.2% are between 50 and 59. The senior population distribution is 502 people or 10.9% of the population are between 60 and 69 years old, 308 people or 6.7% are between 70 and 79, there are 122 people or 2.6% who are between 80 and 89,and there are 13 people or 0.3% who are 90 and older.