Residential mobility is a normal feature of family life but thought to be a source of disruption to a child's development. Mobility may have its own direct consequences or reflect families' capabilities and vulnerabilities. This article examines the association between changes of residence and verbal and behavioral scores of children aged 5, contributing to the literature in three ways. First, it compares two countries, by drawing on the Fragile Families and Child Wellbeing study in the United States (N = up to 1,820) and an urban subsample of the U.K. Millennium Cohort study (N = up to 7,967). Second, beside taking into account an extensive range of demographic characteristics, it applies inverse probability weights to minimize observable selection bias associated with residential mobility and further controls for a wide range of family changes that often co-occur with moves. Third, the article adds to extant research on residential mobility by incorporating the type of locality from and into which families move. Individual-level longitudinal data are linked to objective measures of neighborhood socioeconomic status to gauge the quality of moves families make. Results show that residential moves are not inevitably deleterious to children. In both countries the poorer outcomes of some moves result not from moving per se but rather from the context in which they occur.