OC Fair & Event Center in Costa Mesa, CA, hosts events, activities, festivals, family fun, music and entertainment of all kinds. A working farm with animals and crops, and a veterans museum, make this an ideal destination for field trips, educational enrichment, school extra credit, kids’ adventures and outings. With 157,000 square feet of venue rental space, the fairgrounds is ideal for meetings, parties, corporate events, cultural festivals, trade shows, fundraising runs and concerts.