It is probably higher - have a look at shadowstats.com to see the difference between the stated national rates, and the rates if computed using the old method.
Has the relevant charts. More detailed info does cost, but the summary info is free.
I'm a subscriber. Let's see: the unemployment is currently at 9.4% officially, 20.5% according to shadowstats. Eyeballing it, I'd say Cali has unemployment of 22%. That's depression-era levels.