As always the numbers won’t be exactly right.
Total cases in CA : 53,611
Fully 46% of those are in LA County.
In fact 66% of all CA cases are in the top 4 counties in CA - SOCAL specifically and have 72% of all CA deaths.
In NORCAL; San Francisco, Santa Clara, San Mateo, Marin, Alameda, Contra Costa and Santa Cruz account for just 14% of all CA cases.
Those are the six counties in the Bay Area that were the first counties in AMERICA to go into lock down. Everyone laughed at the time.