The Fair opened in 1946 and was first known as the San Luis Obispo County Fair. The California Mid-State Fair is held annually and runs for 12 days at the end of July. The Fair has hosted some of the biggest names in the music industry. Artists such as Aerosmith, Garth Brooks, Tom Petty, George Strait, Journey, Miranda Lambert, Rod Stewart, Justin Bieber, Jason Aldean, Cardi B, Kenny Chesney, Blake Shelton, Luke Bryan, Carrie Underwood, Dolly Parton, and Kenny Rodgers have all performed on our Main Grandstand Arena stage. Facilities are located at 2198 Riverside Avenue in Paso Robles.