Analysis of Current Population Survey data for 2000 and 2013 shows that dual-earner couples have higher family incomes than sole-earner married couples or single women with or without children. Of di erent family types, married couples in which the husband is the primary earner (the husband earns 60 percent or more of total family earnings) had the highest median family income in 2013 ($101,000), followed closely by married couples in which both spouses had similar earnings ($98,000). In contrast, single mothers with children had the lowest median family income ($30,000). In addition, family income rose among dual-earner couples primarily due to an increase in these wives’ earnings, but declined among sole-earner married-couple and single-women families from 2000 to 2013, contributing to increased inequality.