The age distribution, , in Buchs is; 615 children or 9.4% of the population are between 0 and 9 years old and 716 teenagers or 10.9% are between 10 and 19.
, there were 340 homes with 1 or 2 persons in the household, 1,538 homes with 3 or 4 persons in the household, and 756 homes with 5 or more persons in the household.