Universal City is an unincorporated area within the San Fernando Valley region of Los Angeles County, California, United States. Approximately 415 acres (1.7 kmĀ²) within and around the surrounding area is the property of Universal Pictures, one of the five major film studios in the United States: about 70 percent of the studio's property is inside this unincorporated area, while the remaining 30 percent is within the Los Angeles city limits. Universal City is primarily surrounded by Los Angeles with its northeastern corner touching the city of Burbank, making the unincorporated area a county island.