The WinStar has 9 different themed gaming plazas, including London, shown here. Worth area, (and a near-casino monopoly in the region), this busy casino in far southern Oklahoma takes top billing. Very large casinos that may normally make the list have been omitted in cases where I could not reasonably verify the square footage of actual gaming space and/or slot machine count. Foxwoods in Connecticut is the 2nd largest casino in the United States Unlike commercial casinos in Nevada, where gaming floor space size is a matter of public record, there is less transparency with Indian casinos. Please note that I’ve spent hours trying to find a definitive top ten list, however many Indian casinos do not publish, (or maybe do not know?) their gaming square footage. More specific information about each casino can be found further below. (Tie) Encore Boston Harbor – Boston, Massachusetts & Soaring Eagle Casino Resort – Mt.Seminole Hard Rock Hotel & Casino Tampa – Tampa Bay, Florida.Thunder Valley Casino Resort – Lincoln, California.Yaamava Resort & Casino – Highland, California.Mohegan Sun – Uncasville, Connecticut.Choctaw Casino Resort – Durant, Oklahoma.Foxwoods Resort Casino – Mashantucket, Connecticut.Winstar World Casino and Resort – Thackerville, Oklahoma.Here’s a list of the biggest casinos in the United States, (by floor space dedicated to gambling space, and not overall size of the hotel and resort).

Interestingly, at least to me, the four largest casinos in the United States are either in Oklahoma or Connecticut. is the giant Foxwoods Resort complex in southeast Connecticut, with 344,000 square feet of casino space, 4,800 slot machines, and 280 table games (including poker tables).

Second on the list of top ten largest casinos in the U.S. is the WinStar World Casino Resort in Thackerville, Oklahoma. That being the case, the largest casino in the U.S. The WinStar World Casino & Resort has more slot machines and casino floor space than any other casino in America. We’re only ranking these in terms of actual, casino floor space. Some resorts have large meeting rooms, arenas and shopping districts, however that space doesn’t count in the rankings.

Here, we’re counting square footage devoted to gambling. In a country with over a thousand casinos, and tens of billions in annual gaming revenue, ten resorts stand tall as the biggest casinos in the United States.

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