Contra Costa County offers the opportunity to enjoy the best of San Francisco Bay Area living. The county is home to more than a million people, most of whom live in the affluent suburbs of Concord, Lafayette, Moraga, Orinda, and Walnut Creek. Populated with multimillion-dollar homes with sweeping views, custom gated mansions, luxurious country estates, vineyards, horse pastures, and cattle ranches, Contra Costa County is a haven of serene landscapes and tranquility. The county is famed for its landmarks such as Mt. Diablo, as well as its mild Mediterranean climate, more than 20 parks, protected open spaces, and easy access to San Francisco via the Bay Area Rapid Transit (BART) and Interstate Highways.