California State University, San Bernardino (Cal State San Bernardino or CSUSB) is a public research university in San Bernardino, California. Founded in 1965, it is one of the 23 general campuses of the California State University system. The main campus sits on 441 acres (178 ha) in the University District of San Bernardino, with a branch campus of 40 acres (16 ha) in Palm Desert, California, opened in 1986. Cal State San Bernardino's fall 2020 enrollment was 19,404. In fall 2018, it had 310 full-time faculty, of which 220 (71 percent) were on the tenure track.