No, they aren't. Prop 13 limits maximum property tax rates to very low amounts as well as limiting assessment increases, so no jurisdiction is able to make up for artificially low assessments by jacking up the nominal rate.
> (as are the number if different fees and things like sales tax).
Mostly, it's state income tax, though state and local sales tax are also affected (there are general and program-specific revenue sharing mechanisms by which state revenue goes into local coffers to pay for local programs.)