San Diego County Credit Union Address: 790 W San Marcos Blvd, San Marcos, CA 92078 Phone: (877) 732-2848 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-6pm Sat: 9am-4pm Banks, Credit Unions, E Commerce Other Businesses: Mission Federal Credit Union at 117 S Las Posas Rd, San Marcos, CA 92078 MagniFund Group at 1 Civic Center Dr, San Marcos, CA 92069 Union Bank of California at 669 S Rancho Santa Fe Rd, San Marcos, CA 92078 Chase Bank at 348 S Twin Oaks Valley Rd, San Marcos, CA 92078