The age distribution, , in Seewen is; 88 children or 9.2% of the population are between 0 and 6 years old and 155 teenagers or 16.2% are between 7 and 19. Of the adult population, 35 people or 3.7% of the population are between 20 and 24 years old. 315 people or 32.9% are between 25 and 44, and 222 people or 23.2% are between 45 and 64. The senior population distribution is 110 people or 11.5% of the population are between 65 and 79 years old and there are 33 people or 3.4% who are over 80.