since its founding in 1989, california state university san marcos has been dedicated to student success, social mobility and innovation. through first-year programs, learning communities, internships, undergraduate research and much more, the university works to foster deep learning and academic success by engaging students in meaningful and innovative educational experiences. located on a 306-acre hillside overlooking the city of san marcos, csusm is the only public four-year comprehensive university serving north san diego, southwest riverside and south orange counties.