Home › Venues › Pacific Amphitheatre (OC Fair) Pacific Amphitheatre (OC Fair) Events See the Pacific Amphitheatre (OC Fair) concert calendar. Pacific Amphitheatre (OC Fair) is a 8,000 person capacity venue in Costa Mesa, CA. Hotels & Lodging Near Pacific Amphitheatre (OC Fair) 100 Fair Drive, Costa Mesa, CA 92626, United States Get Directions Directions Edit Venue Pacific Amphitheatre (OC Fair) At-a-GlanceCapacity 8,000Address 100 Fair DriveCosta Mesa, CA 92626United States LinksOfficial SiteAdvertisement Add to My Venues Edit Venue Share this Venue ShareTweetEmail