The Tulsa State Fair App is the official virtual guide to finding your way around the Fair. It features our popular Food Finder and Plan Your Day tools, as well as a Product Finder option, photo sharing feature and more. The Tulsa State Fair is the City’s largest family event, providing educational experiences and entertainment during an 11-day span. Annually held on the fourth Thursday after Labor Day, this historical event is based upon heritage, family values and quality entertainment for all ages.