 This represents a population growth rate of -0.2%.The age distribution, , in Arlesheim is; 559 children, or 6.2% of the population, are between 0 and 6 years old, and 1,220 teenagers, or 13.6%, are between 7 and 19.Of the adult population, 798 people, or 8.9% of the population, are between 20 and 29 years old, 1,074 people, or 12.0%, are between 30 and 39, 1,429 people, or 16.0%, are between 40 and 49, and 1,840 people, or 20.5%, are between 50 and 64.