Population aging is understood as a phenomenon in which elder people represent a major percentage over the entire population (ONU, 2014). An increasing life expectancy and a lower birth rate have caused an increment of the elderly population. For a healthier aging lifestyle, it is required that every country develops new policies and strategies which incorporate political, economic, and social aspects. Old age is not a disease, but it is a stage that needs public policies. Besides, this article presents elderly population indicators which display considerable diversity to the aging population among countries and that the population behavior has changed throughout time.