What county is Vacaville in, and which office handles title transfers?
Vacaville is in Solano County. Title transfers are handled by the California DMV – Vacaville at 675 E Monte Vista Ave, Vacaville, CA 95688. Hours: Mon–Fri 8:00 AM–5:00 PM (Thu until 6:00 PM). Phone: (800) 777-0133.