Fill in requested information (i.e. Correct billing address, federal tax identification number, and banking data).To set up direct deposit, you'll need important information such as your account number and routing number. View the full details at CU SoCal. Bank letterhead; Account number; Routing number; Business name. SDCCU routing number: 322281617. San Diego County Credit Union's ABA routing number is available for your financial and direct deposit needs. (There is no convenience fee using an electronic check option. Please choose new bank account and enter your bank routing number and bank account number). To get your direct deposit started, fill out the form below and return it to your payroll department.