San Francisco Bay Area contains zero towns.
 The Bay Area is defined by the Association of Bay Area Governments to include the nine counties that border the aforementioned estuaries: Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, Sonoma, and San Francisco
 The "South Bay" includes all of the rest of the cities in Santa Clara County, centered around San Jose, the largest city in Northern California

