Wikipedia
Fairplex, formerly known as the Los Angeles County Fairgrounds, has been since 1922 the home of the L.A. County Fair. It is located in the city of Pomona, California. The L.A. County Fair is now held during the month of September, but the facility is used year-round to host a variety of educational, commercial, and entertainment such as trade and consumer shows, conventions, and sporting events.
Fairplex is owned by the County of Los Angeles, but is leased to and is governed by an independent, self-supporting non-profit organization, the Los Angeles County Fair Association, which manages and produces the county fair and re-invests surplus revenues generated by the fair and other events in the maintenance and development of the facility.