This chronological list of school shootings in the United States before the 21st century includes any school shootings that occurred at a K-12 public or private school, as well as colleges and universities, and on school buses.
Excluded from this list are the following: Shooting by school staff, where the only victims are other employees, are covered at workplace killings.
This list does not include the 1970 Kent State shootings, or bombings such as the Bath School disaster.
Total incidents listed here in this section (19th century): 32 13 incidents.
Total number of 20th century incidents listed here: 358