While much attention has been paid to the education premium on the labor market, little study has been devoted to the marriage market. Looking back at four decades of US marriages, this research finds that more highly educated people are more likely to marry and that their spouses tend to be of similar academic achievement. Additionally, more educated couples invest greater time in developing their children’s potential. Meanwhile, children from less educated households enjoy fewer resources and are less likely to marry highly educated spouses, the upshot of which could be less social mobility and wider economic inequality.