This is a chronological list of school shootings in the United States. It consists of incidents in which a firearm was discharged at a school infrastructure, including incidents of shootings on a school bus. This list contains shooting incidents that occurred on the campuses of K-12 public schools and private schools, as well as colleges and universities. Each must have a full citation to a reliable source.
It excludes incidents that occurred during wars or police actions, as well as murder-suicides by rejected suitors or estranged spouses, and suicides or suicide attempts involving only one person. Mass shootings by staff of schools that involve only other employees are covered at workplace killings. It does not include bombings such as the Bath School disaster.