Despite extensive reports during the COVID-19 pandemic of the academic challenges facing students, and the effects of online learning on academic achievements, we have little information regarding the needs and difficulties of K–12 students and their families from a social work perspective. The present article shares findings from a nationwide survey of 1,275 school social workers (SSWs) reporting on their clients—schools, children, and families—during the spring 2020 COVID-19 school closures. SSWs indicated that the children and families they served had significant unmet basic needs, including for food, healthcare, and housing. Poverty and mental health compounded pandemic difficulties, which were associated with the sociodemographic makeup of schools. Student engagement in social work services during the closures was significantly lower than prepandemic levels, generally due to unmet material needs. Several policy and practice implications arise from these findings, including a need for additional services for students and families, a plan to address structural inequities in our schools and communities, coordinated outreach to reengage missing students, and recognition of the strong work being done by school staff coupled with a need for additional supports and resources to combat persistent inequality.

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