Unfortunately, neither UCSD nor SDSU has career survey information by major for public access on its web site. You will have to ask their career centers directly for economics-major-specific career survey results and hope they have some to share with you.
If you intend to go on to PhD study in economics, you may want to ask some economics departments if UCSD versus SDSU matters to them in PhD program admissions, assuming that you take additional upper division math and statistics courses as well as economics courses. Whether they will tell much useful information is something you may have to find out by asking.