Demand for child care is growing as more women with young children work. This brief provides the latest data on the child care arrangements of working mothers. The data on children who care for themselves are from the Current Population Survey (CPS), conducted in December 1984. All other data were collected in the Survey of Income and Program Participation (SIPP) for December 1984 through March 1985 and cover the three youngest children using child care in each household. This group represents about 90 percent of all children whose mothers worked.