Oc Fairgrounds. The orange county fairgrounds is the place to be during the summer for the annual orange county fair. Orange county fairgrounds serves a variety of community events, but primarily it is home to the annual orange county fair, held approx.
Find oc fair & event center venue concert and event schedules, venue information, directions, and. Standard octa bus routes to the fair include the 47, 55, 71 and 178 lines.