The age distribution, , in Eiken is; 195 children or 9.8% of the population are between 0 and 9 years old and 246 teenagers or 12.3% are between 10 and 19. Of the adult population, 256 people or 12.8% of the population are between 20 and 29 years old. 276 people or 13.8% are between 30 and 39, 387 people or 19.4% are between 40 and 49, and 262 people or 13.1% are between 50 and 59. The senior population distribution is 188 people or 9.4% of the population are between 60 and 69 years old, 145 people or 7.3% are between 70 and 79, there are 37 people or 1.9% who are between 80 and 89,and there are 7 people or 0.4% who are 90 and older.