The research found tribal gaming generates $105bn in output across the US, provides 676,000 jobs and $15bn in taxes and revenue share payments to all levels of government.

It was California that came out on top, with tribal casinos adding $20bn to the state’s economy, generating $3.4bn in taxes and revenue share payments.

Oklahoma was the second-largest tribal gaming state, generating $1.6bn in taxes and revenue share payments, alongside almost 75,000 jobs for locals.

Tribal gaming also added $6.1bn to Florida’s economy, generating just over $1bn in state, federal and local taxes. Its impact supported over 45,000 jobs in the Sunshine State.

Sara Slane, Senior Vice President of Public Affairs for the AGA, said: "Tribal gaming operators are present in 28 states and create nearly half of all US gaming revenue.

"This report details the widespread economic impact that tribal casinos have in states across the country, providing diverse career opportunities, supporting local businesses and generating tax revenue share payments for all levels of government."