In the United States, more than 70 million students are enrolled in public elementary and secondary (K-12) schools or degree-granting postsecondary institutions. School and campus safety and security for these students encompasses many issues, including violence prevention and response, school climate, and the physical and mental health of the school community. Students' safety and security while in school is a paramount concern of the federal government and state and local governments, as well as school districts, institutions of higher education, students' families, and Members of Congress. The federal government's main avenue for supporting schools in general and school and campus safety specifically is through grant programs. This report provides an overview of grant programs at the U.S. Department of Education (ED), U.S. Department of Justice (DOJ), U.S. Department of Homeland Security (DHS), and U.S. Department of Health and Human Services (HHS) that provide direct or indirect funding for school and campus safety and security initiatives. The report also provides an overview of programs and initiatives administered by these departments that support school safety and security efforts in other ways, such as through data collection and reporting and technical assistance.