For single mothers families, who are especially likely to live in poverty, college attainment is a game changer for improving family well-being and meeting the demands of a changing economy. College credentials are associated with a host of positive outcomes, including increased earnings, higher rates of employment, improved health, increased civic engagement, and improved outcomes among the children of college graduates. To better understand the benefits of college for single mothers, and the costs of investments in supports that can improve their success, the Institute for Women's Policy Research (IWPR) estimated the economic returns to college attainment for single mothers and their families, and for society more broadly, and how those benefits compare to investments needed to promote single mother success. This report is part of a series of publications presenting findings from this cost-benefit analysis. [Additional support for this publication was provided by the Jewish Foundation for Education of Women.]