The age distribution, , in Birwinken is; 161 children or 12.4% of the population are between 0 and 9 years old and 199 teenagers or 15.4% are between 10 and 19. Of the adult population, 130 people or 10.0% of the population are between 20 and 29 years old. 138 people or 10.6% are between 30 and 39, 228 people or 17.6% are between 40 and 49, and 190 people or 14.7% are between 50 and 59. The senior population distribution is 114 people or 8.8% of the population are between 60 and 69 years old, 77 people or 5.9% are between 70 and 79, there are 54 people or 4.2% who are between 80 and 89, and there are 5 people or 0.4% who are 90 and older.