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.
The age distribution in Felben-Wellhausen is characterized by a significant proportion of children and teenagers, with a smaller percentage of adults within the specified age range.