structural:scholar_edition, structural:expansion
United States

With currently over 1,000 casinos, the United States has the largest number of casinos in the world. The number continues to grow steadily as more states seek to legalize casinos. 40 states now have some form of casino gambling. Interstate competition, such as gaining tourism, has been a driving factor to continuous legalization. Relatively small places such as Las Vegas are best known for gambling; larger cities such as Chicago are not defined by their casinos in spite of the large turnover.

The Las Vegas Valley has the largest concentration of casinos in the United States. Based on revenue, Atlantic City, New Jersey, ranks second, and the Chicago region third.

Top American casino markets by revenue (2022 annual revenues):

The Nevada Gaming Control Board divides Clark County, which is coextensive with the Las Vegas metropolitan area, into seven market regions for reporting purposes.

Native American gaming has been responsible for a rise in the number of casinos outside of Las Vegas and Atlantic City.