Disneyland has a larger cumulative attendance than any other theme park in the world, with 757 million visits since it opened (as of December 2021). In 2018, the park had approximately 18.6 million visits, making it the second most visited amusement park in the world that year, behind only Magic Kingdom, the very park it inspired. According to a 2005 Disney report, 65,700 jobs are supported by the Disneyland Resort, including about 20,000 direct Disney employees and 3,800 third-party employees (independent contractors or their employees). Disney announced "Project Stardust" in 2019, which included major structural renovations to the park to account for higher attendance numbers.
What theme park in the world has the highest cumulative attendance?
Disneyland, in Anaheim, California, has the largest cumulative attendance of any theme park in the world.  As of December, 2021, Disneyland has had 757 million visits since it opened in 1955.  Attendance in 2018 was approximately 18.6 million visits, second most visited theme park in the world behind the Magic Kingdom.  It's reported that Disneyland supports 65,700 jobs, including 20,000 direct Disney employees and 3,800 third-party employees.