S A N F R A N C I S C O B AY A R E A R E G I O N Yolo Co.
Sonoma Co. Napa Co.
Santa Rosa
Sacramento Co. Vacaville
Napa Fairfield
Petaluma
Solano Co. Vallejo
Marin Co. San Francisco-Oakland
Antioch
Explanation of U.S. Census Geography Urbanized Area (UA):
A UA consists of contiguous, densely settled census block groups (BGs) and census blocks that meet minimum population density requirements (1000ppsm /500ppsm), along with adjacent densely settled census blocks that together encompass a population of at least 50,000 people.
Concord
San Francisco-U.S. Populated Place Areas represents populated place areas that include Oakland
San Joaquin Co.
Contra Costa Co.
U.S. Census Populated Places:
census designated places, consolidated cities, and incorporated places within United States identified by the U.S. Bureau of the Census.
San Francisco-Oakland
Livermore
Alameda Co.
Large Urbanized Areas Antioch (Pop. 217,591) Santa Rosa (Pop. 285,408) Concord (Pop. 552,624)
Stanislaus Co.
San Mateo Co.
San Jose (Pop. 1,538,312)
San Jose
San Francisco--Oakland (Pop. 2,995,769) Small Urbanized Areas
Santa Clara Co.
Populated Places Outside of Urbanized Areas Source: Census, MTC. Cartography: MTC GIS/ October 2007