Number of theme parks in the U.S.: more than 600
Annual number of visitors to U.S. theme parks: 335 million
To the Florida Disney World theme parks: 45.1 million
Percentage of Americans surveyed who visited a theme park last year: 28%
Number of roller coasters in the U.S.: more than 1,300
Speed of the fastest roller coaster in the U.S. (the Kingda Ka at Six Flags in Jackson, NJ): 128 mph
Height of the highest roller coaster in the U.S. (also the Kingda Ka): 456 feet
Number of people on payroll at Disney World in Florida: 58,000
Amount spent on payroll at Disney World each year: $1.1 billion
Amount of money spent each year on maintenance and engineering at Disney World:
$100 million
Revenues generated by U.S. theme parks and attractions in 2005: $11.2 billion
Research by Sarah Sundberg. Cribsheet appears in Strollerderby every Wednesday.