Existing literature suggests that youth with intellectual disabilities are at increased risk for child maltreatment. Little is known about youth with intellectual disabilities who are supervised by child welfare authorities or living in foster care. Reasons for child welfare system involvement and placement types are explored. In this cross-sectional exploratory study, we drew on data from the Adoption and Foster Care Reporting System (AFCARS) for youth in 46 states, the District of Columbia, and Puerto Rico. A sample of 17,714 youth with intellectual disabilities and a comparison group (n = 655,536) were identified for 1999. Findings have implications for preventing the removal of youth from caregivers and the promotion of community inclusion of foster youth while in foster care.