Following the example of other Canadian provinces, those in Atlantic Canada are affected, albeit to a lesser degree, by the increase in the number of persons aged 65 or over, a trend that we can define as gerontogrowth. In addition, this region of Canada seems particularly affected by the trend of an aging population, that is, the rise in the proportion of people in the total population aged 65 or more. For example, on a national scale, New Brunswick is the third oldest province according to the last five-year period (2001–2006), having advanced from the fourth position it held between 1981 and 2001 and from the fifth position occupied between 1971 and 1981. In addition, these trends evolve in different manners in different places, contrasts that are strongest at the regional and local level. The goal of this article is to examine the strength of these disparities during the period 1981 to 2006 and to identify some potential solutions for a territorial development strategy for seniors.