Racial disparities in child development in the United States are significant, with a particularly pronounced disadvantage among Black children. This report focuses on the development of children of Black immigrants, comparing against the outcomes for their peers in native-born and other immigrant families. The report also compares children in the United States to those in the United Kingdom, where there is a large Black immigrant population but a notably different policy context of reception. Additional tables and figures are appended. (Contains 6 tables, 5 figures, and 56 footnotes.) [Additional funding for this paper was provided by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).]