There are six Disneyland parks worldwide, and two of them reside in the United States — but while Disneyland California and Walt Disney World Resort have notable similarities, they also have some major differences. Disney's California-based location is the first of its theme parks to open worldwide, but Walt Disney World has caught up in terms of popularity. This might be because the Florida resort is larger than the California one, allowing it to offer more accommodations and attractions.

https://screenrant.com/disneyland-disney-world-differences-which-to-visit/