Native American gambling pulled in US$25bn in 2006, marking an 11 per cent increase on the previous year, as the industry's explosive growth outpaced that of Las Vegas.
Federal figures compiled from 387 tribal facilities in 28 states, show Indian gambling revenue has nearly doubled in five years.
Indian casinos brought in $12.8bn from gambling in 2001, $22.5bn in 2005 and $25.1bn in 2006.
’‘The continued growth is eye-opening considering the tribal gaming industry is still relatively young,’’ said chairman of the National Indian Gaming Commission, Phil Hogen.