Six Flags Entertainment Corporation, more commonly known as Six Flags or as Six Flags Theme Parks, is an American amusement park corporation, headquartered in Grand Prairie, Texas. It has properties in Canada, Mexico, and the contiguous United States. Six Flags owns more theme parks and waterparks combined than any other amusement park company in the world, and has the seventh-highest attendance in the world. The company operates 25 properties throughout North America, including theme parks, amusement parks, water parks and a family entertainment center. In 2019, Six Flags properties hosted 32. 8 million guests.