 The age distribution, , in Sisseln is; 149 children or 11.3% of the population are between 0 and 9 years old and 145 teenagers or 11.0% are between 10 and 19.Of the adult population, 142 people or 10.8% of the population are between 20 and 29 years old.196 people or 14.9% are between 30 and 39, 252 people or 19.2% are between 40 and 49, and 199 people or 15.1% are between 50 and 59.