Since its inception, a primary goal of the Sightlines Project has been to emphasize that longevity is a phenomenon that affects every person in the American population at every stage of life, rather than simply a topic of discussion about “old age.” To this end, the project was designed to track key measures of financial security, social engagement, and physical health that span generations, or age cohorts, to highlight actions that can be taken to improve longer lives for all. In the inaugural Sightlines report, across these domains, and particularly with respect to financial security, we observed that one of the most intractable obstacles to helping all people live long and live well were the pervasive inequalities between various subgroups of the U.S. population. These included types of families, genders, ethnicities, and educational backgrounds. As such, it is difficult to adequately describe the state of financial security in the U.S., and to identify points of need and promise for enhancing longevity, based singularly on highly generalized trends. It is for this reason that we focus here on demographic variation in key indicators of financial security using the Sightlines framework so as to provide a more nuanced, informed understanding of Americans’ financial security as they live longer lives.