San Benito County, officially the County of San Benito, is a county located in the Coast Range Mountains of the U.S. state of California. As of the 2010 census, the population was 55,269. The county seat is Hollister. San Benito County is included in the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area, which is also included in the San Jose-San Francisco-Oakland, CA Combined Statistical Area. El Camino Real passes through the county and includes one mission in San Juan Bautista.