Incorporated in 1866, the city of San Buenaventura is the county seat of Ventura County, California. Ventura has a population of 106,744. Ventura is accessible via U.S. Route 101, California State Route 33, and California State Route 126. San Buenaventura (Ventura) apartments for rent comparison page shows most up to date rent information on San Buenaventura (Ventura) apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.