A portion of the gaming revenue gets shared with individuals in tribes where the casinos are located. The money also benefit communities — supporting education, buildings and services. And casinos also provide jobs in the thousands, although exactly how many is not clear.
Native American gambling comprises casinos, bingo halls, and other gambling operations on Indian reservations or other tribal land. Since these areas have tribal sovereignty, states have limited ability to forbid gambling there, as codified by the Indian Gaming Regulatory Act of 1988. In 2011 there ended up being 460 gambling operations run by 240 tribes with a total annual revenue of $27 billion