fairgrounds

Etymology 1
From.

Noun

 * 1) ; the grounds where a fair is held.
 *  At other times of the year, the county fairgrounds are used for a variety of events, such as revival meetings and high-school graduations. 
 *  If the town doesn't have a nearby fairgrounds, then any sizeable empty field will do for a carnival.

Usage notes

 * This variant is often chosen when the site is for a recurring fair, as opposed to a happenstance itinerant one
 * While this is plural, the use is sometimes treated as singular.