, the gender distribution of the population was 51.0% male and 49.0% female. The age distribution, , in Castrisch is; 53 children or 12.9% of the population are between 0 and 9 years old and 66 teenagers or 16.0% are between 10 and 19. Of the adult population, 39 people or 9.5% of the population are between 20 and 29 years old. 59 people or 14.3% are between 30 and 39, 81 people or 19.7% are between 40 and 49, and 33 people or 8.0% are between 50 and 59. The senior population distribution is 29 people or 7.0% of the population are between 60 and 69 years old, 23 people or 5.6% are between 70 and 79, there are 26 people or 6.3% who are between 80 and 89 there are 3 people or 0.7% who are between 90 and 99.