The age distribution, , in Saint-Cierges is; 51 children or 11.1% of the population are between 0 and 9 years old and 55 teenagers or 12.0% are between 10 and 19. Of the adult population, 53 people or 11.5% of the population are between 20 and 29 years old. 68 people or 14.8% are between 30 and 39, 66 people or 14.4% are between 40 and 49, and 78 people or 17.0% are between 50 and 59. The senior population distribution is 49 people or 10.7% of the population are between 60 and 69 years old, 27 people or 5.9% are between 70 and 79, there are 12 people or 2.6% who are between 80 and 89.Canton of Vaud Statistical Office accessed 29 April 2011
