The San Francisco Bay Area is over 7,000 square miles (land mass) and home to more than 7 million people. The Bay Area includes nine counties that touch San Francisco Bay: - In the North: Marin, Napa, Solano and Sonoma - In the East: Alameda and Contra Costa - In the South: Santa Clara - On the Peninsula: San Francisco and San Mateo According to 511.org, a website supported by The Metropolitan Transportation Commission (MTC), the agency responsible for the planning, financing and coordination of transportation throughout the Bay Area, the region features a diverse transportation network consisting of: - 750 miles of bikeways in the regional bicycle system including the nine-country Bay Trail (and an additional 1,300 miles of new bikeways proposed). - 9,000 miles of bus routes - 470 miles of rail transit - 5 commuter ferry lines - 5 public ports - 3 major commercial airports - 1,420 miles of highways - 340 miles of carpool lanes - 8 toll bridges - 19,600 miles of local streets and roads
