School social workers and other school personnel can find meeting the educational and social needs of immigrant children a challenge, particularly if these children are also experiencing poverty and other educational barriers, including limited English language proficiency. Quality after-school programming has been associated with a variety of positive effects such as increased educational attainment and positive social and emotional development and could, therefore, prove significant in the lives of immigrant children. Yet, immigrant children participate less. The purpose of this article is to discuss ways in which school social workers can increase enrollment in after-school programming among immigrant children, six to 12 years of age, by becoming both advocates for children and families and leaders in developing and maintaining these services. School social workers are poised to play a number of roles related to practice, administration, research, and policy. Because this particular age group of children begins to look beyond the family for guidance and support, middle childhood is an opportune time for school social workers to work toward involving children in positive after-school experiences.