I don't necessarily understand what you're trying to ask?
In terms of state schools, UCLA and UCSF, you will be at an advantage when you apply if you are a California resident. As for the privates such as UOP, USC, Western, LLU, and such, they weigh you just as much as OOS applicants. The reasons these schools may represent a large percentage of CA residents is due to the applicant pool the school receives and the school's location.