Desert , 81 miles (130 km) northeast of Los Angeles, 34 miles (55 km) south of Barstow , 48 miles (77 km) east of Palmdale , and 37 miles (60 km) north of San Bernardino through the Cajon Pass on Interstate 15. Victorville is the location of offices of the "Mojave Desert Branch" of the San Bernardino County government. For