California State University, Northridge (CSUN or Cal State Northridge), is a public university in the Northridge neighborhood of Los Angeles, California, United States. With a total enrollment of 36,848 students (as of Fall 2024), it has the fourth largest total student body in the California State University system. The size of CSUN also has a major impact on the California economy, with an estimated $1.9 billion in economic output generated by CSUN on a yearly basis.