By country, the United States, with eight, is the one with the largest number of amusement parks among the 25 most visited in the world.

The United States remains the country with the most theme parks in 2026, boasting over 400 major amusement and theme parks. This dominance is driven by massive hubs like Orlando, Florida—the "Theme Park Capital of the World"—and Southern California. The U.S. market is incredibly diverse, ranging from the global "destination" resorts like Walt Disney World and Universal Studios to regional powerhouses like Cedar Point, Six Flags, and Busch Gardens. Following the U.S., China has seen the fastest growth in the theme park sector, with hundreds of new parks opening in the last decade, including massive domestic chains like Fantawild and Chimelong, as well as international entries like Universal Beijing and Shanghai Disney. Japan also ranks high, with a very high "density" of parks per square mile, led by Tokyo Disney Resort and Universal Studios Japan. However, in terms of sheer quantity and the variety of "mega-parks," the United States continues to hold the global crown, with a theme park industry that generates over $20 billion in annual revenue and attracts hundreds of millions of visitors each year.