Nope, Bay Area is bigger.
https://en.wikipedia.org/wiki/Combined_Statistical_Area
Top 20:
1 New York-Newark
2 Los Angeles-Long Beach
3 Chicago-Naperville
4 Washington-Baltimore-Arlington
5 San Jose-San Francisco-Oakland
6 Boston-Worcester-Providence
7 Dallas-Fort Worth
8 Philadelphia-Reading-Camden
9 Houston-The Woodlands
10 Miami-Fort Lauderdale-Port St. Lucie
11 AtlantaAthens-Clarke CountySandy Springs
12 Detroit-Warren-Ann Arbor
13 Seattle-Tacoma
14 Minneapolis-St. Paul
15 Cleveland-Akron-Canton
16 Denver-Aurora
17 Portland-Vancouver-Salem
18 Orlando-Deltona-Daytona Beach
19 St. Louis-St. Charles-Farmington
20 Pittsburgh-New Castle-Weirton
I know that the Atlanta market isn't bigger than the Bay Area market, but that census is a couple of years old. I just heard recently that Atlanta is #9.