Nice parts of San Fransisco to live? (College student)?

- The San Francisco Bay Area, commonly known as the Bay Area, is a metropolitan region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompes urban areas such as San Francisco-Oakland and San Jose, along with smaller urban and rural areas.[3] The nine counties are Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma.