What county is Sunnyvale in, and which office handles title transfers?
Sunnyvale is in Santa Clara County. Title transfers are handled by the California DMV – Sunnyvale at 580 N Pastoria Ave, Sunnyvale, CA 94085. Hours: Mon–Fri 8:00 AM–5:00 PM (Thu until 6:00 PM). Phone: (800) 777-0133.