For several years, the municipality has experienced one of the most spectacular urban developments and a significant densification of its population, particularly its proportion of young families, most of whom come from large urban centers. The average age of Saint-Amable’s citizens (34.7 years) is one of the lowest in Quebec.

23.1% of the population of Saint-Amable is under the age of 15, while the provincial average is 16.3%. In all age groups from 0 to 19 years, the average population of Saint-Amable is higher than the provincial average.