This report is the sixth to present nationwide data on the well-being of U.S. children. The statistical portrait is based on indicators of child well-being and on contextual measures describing the changing population and family context. Part 1 of the report, "Population and Family Characteristics," presents information illustrating trends in eight key demographic measures, including children as a proportion of the population, racial and ethnic composition, and difficulty speaking English. Part 2, "Indicators of Children's Well-Being," presents data on 24 key indicators in the following areas: (1) Economic Security, including child poverty, family income, parent employment, housing problems, and health care access; (2) Health, including activity limitation, immunization, low birthweight, mortality rates, and adolescent births; (3) Behavior and Social Environment, including cigarette smoking, alcohol use, illicit drug use, and crime victimization; (4) Education, including family reading, early childhood education, achievement, high school completion, and youth neither enrolled in school nor working; and (5) Special Feature: children of at least one foreign-born parent. For each background measure or indicator, three types of information are presented: reasons the measure or indicator is important to understanding children's well-being, figures illustrating trends or population group differences, and highlights with information on current status,recent trends, and important population group differences. Additional indicators needed are also noted. The report's two appendices present detailed data tables and data source descriptions. Among the key findings, the report notes that children are projected to remain a stable percentage of the total population, while the ethnic diversity of U.S. children continues to increase. The poverty rate for children living with family members reached a high of 22 percent in 1993 and has since decreased to its lowest rate since 1979. In 2000, the rate of births to adolescents was at a record low. Cigarette use among adolescents shows indications of decline. Bachelor's degree attainment remained at an all-time high, and in 2001, 19 percent of children had at least one foreign-born parent. (Contains 76 endnotes.) (EV)