The tribal gaming sector generates 45 percent of all gaming revenue in the U.S., and is a critical driver of economic activity.
The U.S. casino gaming industry is a significant contributor to the national as well as state economies, driving an array of economic activity including spending, jobs, wages, taxes, other government revenue and capital investment. The tribal gaming sector, which generates 45 percent of all gaming revenue in the U.S., is a critical driver of that economic activity.
https://www.americangaming.org/resources/the-economic-impact-of-tribal-gaming-a-state-by-state-analysis-2/