Child Trends' latest brief, Frequent Residential Mobility and Young Children's Well-being, examines demographic characteristics of young children identified as "frequent movers," as well as how the experience of frequent moves is associated with their mental and physical health, compared with children who have experienced more residential stability. Examining children younger than six who moved five or more times, we found that only a small percentage of young children experienced frequent moves. However, children from households with no fully employed adult, children from single-parent households, and children who are mixed-race or Hispanic were over-represented in this group.