Yes being low income, the UC’s and CSU’s would be good options and OP would probably qualify for Federal aid (Pell grant) and Cal Grant (if a CA resident) which I am assuming since they are targeting CA schools. Since OP was asking about Scholarships and they have a high SAT, I was trying to address the merit opportunities which are not that great for the CSU’s and UC’s, but the need-based aid would definitely make these schools affordable.
@benn, run the Net Price Calculators for all schools of interest but you should not just limit your list to these 2 schools. You could also qualify for fee waivers for the UC and CSU applications which will allow to apply to 4 UC’s and 4 CSU’s.
For the UC’s:
**Fee waivers
UC will waive application fees for up to four campuses for qualified students who would otherwise be unable to apply for admission. The fee waiver program is for United States citizens, permanent residents, and applicants eligible for AB540 benefits.
Fee waivers can’t be applied to more than four campuses, regardless of their source (e.g. UC, CollegeBoard/SAT). If you apply to more than four, you’ll need to pay $70 for each additional choice.
Applying for a fee waiver:
You can apply for a fee waiver within the online application and be notified immediately whether you have qualified. You will need to provide your family’s income and the number of people supported by that income.
For CSU fee waivers:
https://www2.calstate.edu/apply/paying-for-college/Pages/fee-waiver.aspx
FYI: There is merit aid (scholarships for competitive academic stats) and need-based aid (grants based on income). Since you have a solid GPA along with your SAT score, you should qualify for both at many schools beyond the UC’s and CSU’s.