What Is the Biggest Casino in the United States?

WinStar World Casino in Thackerville, Oklahoma claims the title — with over 600,000 square feet of gaming space. Here's the definitive top 10 ranked list for 2026.

Quick Answer

WinStar World Casino and Resort in Thackerville, Oklahoma is the biggest casino in the United States, with over 600,000 square feet of gaming space. It features 8,500+ electronic games, 100+ table games, two hotels with 1,399 combined rooms, and a 13,000-seat arena. It is owned and operated by the Chickasaw Nation.

The 10 Biggest Casinos in the United States (by Gaming Floor Space)

Gaming floor square footage figures represent total dedicated gaming space and may vary by source. Some properties have expanded since initial figures were published.

#1: WinStar World Casino and Resort — Thackerville, Oklahoma

Gaming space: 600,000+ square feet
Operator: Chickasaw Nation
Location: Just south of the Oklahoma-Texas border, 90 minutes from Dallas

WinStar is not just America's largest casino — it's consistently ranked among the three largest casinos in the world, competing with Casino Lisboa in Macau and The Venetian Macao for the global top spot depending on methodology.

The casino is divided into 12 themed "gaming plazas" — each named after a world city (Paris, London, Rome, Beijing, etc.) — with a combined total of:

• ■ 8,500+ electronic gaming machines (slots and video poker)
• ■ 100+ table games (blackjack, roulette, craps, baccarat, poker)
• ■ A dedicated poker room
• ■ Off-track betting on horse racing

Beyond the gaming floor, WinStar offers two hotels (the WinStar World Casino Hotel and the Global Event Center Hotel) with 1,399 combined rooms, the Global Event Center — a 13,000-seat arena hosting major concerts, boxing, and entertainment, an 18-hole golf course (WinStar Golf Club, designed by Scott Miller), 20+ restaurants, food courts, and bars, and the world's largest electronic billboard on the property.

WinStar is owned and operated by the Chickasaw Nation of Oklahoma, a federally recognized tribal nation. It is located on tribal trust land and operates under a tribal gaming compact with the State of Oklahoma. The property generates over $1 billion annually in gaming revenue.

#2: Mohegan Sun — Uncasville, Connecticut

Gaming space: 364,000 square feet
Operator: Mohegan Tribe

Mohegan Sun is one of the two titans of the Connecticut tribal gaming market — the other being Foxwoods. It offers 364,000 square feet of gaming across three interconnected casino buildings: Casino of the Earth, Casino of the Sky, and Casino of the Wind. The complex includes a 10,000-seat arena (Mohegan Sun Arena), five hotels with 1,600+ rooms, and 45+ dining options.

Connecticut has no state income tax and is within driving distance of both Boston and New York City — making Mohegan Sun's location exceptionally valuable.

#3: Foxwoods Resort Casino — Mashantucket, Connecticut

Gaming space: 340,000 square feet
Operator: Mashantucket Pequot Tribal Nation

Foxwoods is the other Connecticut tribal giant — and for years was considered the world's largest casino before WinStar expanded its footprint. Today, Foxwoods spans 340,000 square feet of gaming across six casinos on a single campus. Foxwoods also offers one of the largest poker rooms in the country, with 100+ tables running live cash games 24/7.

#4: The Venetian Resort Las Vegas — Las Vegas, Nevada

Gaming space: 225,000 square feet
Operator: Apollo Global Management

The Venetian is Las Vegas's largest single-building casino by gaming floor space — 225,000 square feet of table games, slots, and sports betting spread across an Italian Renaissance-themed complex connected to The Palazzo tower next door. Together, The Venetian and Palazzo form one of the largest resort complexes in the world with 7,117 suites.

#5: MGM Grand Las Vegas — Las Vegas, Nevada

Gaming space: 170,000 sq ft
Operator: MGM Resorts International

MGM Grand Las Vegas has been one of the Strip's flagship properties since opening in 1993 — it was the world's largest hotel at the time. Its 170,000-square-foot gaming floor remains one of the largest on the Las Vegas Strip. The Grand Garden Arena hosts major boxing and entertainment events.

What Makes a Casino "the Biggest"?

This is worth clarifying — because different lists rank casinos differently:

• ■ By gaming floor space: WinStar wins clearly at 600,000+ sq ft
• ■ By total resort size / rooms: Las Vegas megaresorts like The Venetian (7,117 suites) often rank higher
• ■ By number of gaming machines: WinStar again, with 8,500+ electronic games
• ■ By annual revenue: Las Vegas Strip casinos and Atlantic City's Borgata typically lead by gaming revenue despite smaller floor space — due to higher average bets

For this guide, we use gaming floor square footage as the primary metric, which is the most commonly cited measurement in the industry.

Biggest Casinos by Region

Biggest Casino in the Midwest

WinStar World Casino (Oklahoma) leads the broader region, but within the core Midwest states: MotorCity Casino Hotel (Detroit, Michigan) at approximately 100,000 sq ft and Hollywood Casino St. Louis are among the largest.

Biggest Casino on the East Coast

Mohegan Sun (Uncasville, CT) and Foxwoods (Mashantucket, CT) dominate the East Coast by floor space, followed by Borgata in Atlantic City.

Biggest Casino in Las Vegas

The Venetian at 225,000 sq ft is Las Vegas's largest single-building gaming floor, though MGM Grand, Bellagio, and Caesars Palace are all within range.

The World's Largest Casinos: Where Does the U.S. Rank?

The global picture looks different. When international casinos are included, the full top 5 by gaming space is:

*WinStar's figure is variously reported between 500,000 and 630,000 sq ft depending on which spaces are included. Under most methodologies, WinStar is the world's largest or second-largest casino.

The U.S. holds multiple slots in the global top 10 — with Connecticut's pair of tribal giants outpacing almost every Las Vegas casino in raw gaming floor space despite being far less famous internationally.

FAQ: America's Biggest Casinos

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