This report uses data from the RAND Corporation's American Educator Panels to understand the state of infrastructure to support elementary social studies instruction during the 2021-2022 school year. The report is focused at the elementary (specifically, kindergarten through grade 5 [K-5]) level because the authors hypothesized that infrastructure for social studies is especially lacking at this grade level. This report is the first effort to build a national picture of state-, district-, and school-provided infrastructure specifically for social studies instruction and also the first to provide national estimates of what social studies curriculum materials elementary teachers regularly use for their instruction. The infrastructure examined is much less robust for social studies than for other core academic subjects, especially at the elementary level. The findings contribute to a growing body of evidence showing that social studies instruction is underrepresented in the U.S. education system. The findings imply that improvements to social studies teaching and learning require much more than piecemeal efforts. Instead, a more comprehensive set of supports provided at the state and local levels is necessary to improve the state of social studies instruction across the United States.