This article uses survey data on marital history and divorce statistics to estimate the proportion of children affected by marital disruption.Over the century, about 25-3096 of all children experienced a marital disruption; in the next few decades, perhaps 40% of all children will be affected. These large numbers raise questions about how best to meet the special needs of the affected children. A review of the literature suggests that opposition to divorce reform "for the sake of the children" cannot be justified, and an examination of the economic problems of single-parent families leads to proposals for income support.Rising divorce rates and increasing numbers of single-parent families raise legitimate public concern for the children involved in marital disruptions. Proposed divorce reform laws, for example, contain explicit and detailed provisions on the custody and support of children (Uniform Marriage and Divorce Act, Note 1). Welfare programs, both existing and proposed, also focus on children:The labels "Aid to Families with Dependent Children" and "Family Assistance Plan" reflect public priorities quite clearly. With even more attention likely to be directed to divorce and welfare reform in the next few years, it becomes important to know how many children are affected by marital disruption and how the experience affects them.