The world population is aging, and McKinsey Global Institute reports that this “is a key factor in many of the cities in developed economies that are experiencing stagnant or declining population and whose economies are therefore under pressure.” Given that the average age in urban centers is trending older, the pursuit of healthy, productive, and purposeful aging must become a priority for civic leaders. With continuing partisanship and discord at the federal level, America’s cities are poised to lead the incubation of innovations and solutions in response to these new realities.