The age distribution, , in Felben-Wellhausen is; 246 children or 10.3% of the population are between 0 and 9 years old and 323 teenagers or 13.5% are between 10 and 19. Of the adult population, 310 people or 12.9% of the population are between 20 and 29 years old. 309 people or 12.9% are between 30 and 39, 444 people or 18.5% are between 40 and 49, and 383 people or 16.0% are between 50 and 59. The senior population distribution is 212 people or 8.9% of the population are between 60 and 69 years old, 100 people or 4.2% are between 70 and 79, there are 59 people or 2.5% who are between 80 and 89, and there are 8 people or 0.3% who are 90 and older.