You’re standing on the corner of Tropicana and Las Vegas Boulevard, looking up at that massive, shimmering green block of glass. It’s a beast. You know it’s big—anyone with eyes can see that—but when you start trying to figure out exactly how many rooms are at the MGM Grand, things get a little weird.
Honestly, the numbers you find online are all over the place. Some sites scream about 6,800 rooms. Others claim it’s barely 5,000. Why the massive gap? It’s not like they’re hiding a thousand rooms in a secret dimension (though in Vegas, you never know). The reality is that "MGM Grand" is more of a sprawling ecosystem than a single hotel building.
To give you the straight answer for 2026: The main MGM Grand building—the iconic emerald green cross—currently houses 4,762 guest rooms.
Wait, why did you hear 6,800? That’s because people often lump in the "neighbors." If you count the three towers of The Signature at MGM Grand and the ultra-exclusive Skylofts, the total resort complex inventory jumps to roughly 6,731 rooms.
The 2025 Shakedown: Why the Numbers Changed
If you’re a Vegas regular, you might remember the "5,005" figure that was touted for decades. For a long time, MGM Grand was the undisputed heavyweight champion of room counts in the United States.
But things changed recently.
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During the massive 2024–2025 renovation cycle, the resort decided to prioritize "quality over quantity." They basically took a sledgehammer to some of the smaller, older standard rooms and combined them to create 111 brand-new suites. It makes sense. Today’s traveler wants a separate living area and a bathroom they don’t have to shimmy into. By expanding the footprint of these rooms, the total "key count" in the main building dropped to that 4,762 number.
Even with the "reduction," it remains the largest single hotel building in the country. It’s a city. Seriously.
Breaking Down the "Grand" Neighborhood
To actually understand the layout, you have to stop thinking of it as one hotel. It’s more like a collection of distinct experiences that all happen to share a zip code and a rewards program.
The Main Emerald Towers
This is what most people mean when they ask how many rooms are at the MGM Grand. It’s the 30-story main structure. Inside, you’ve got:
- Grand King & Queen Rooms: The bread and butter. These were all recently refreshed with that "Stay Well" tech that filters your air and water.
- Executive Suites: Roughly 675 square feet of "I’m doing Vegas right" space.
- The Mansion: This is the "if you have to ask, you can't afford it" section. It’s 29 private villas hidden away from the casino noise, designed to look like an 18th-century Mediterranean estate.
Skylofts at MGM Grand
Occupying the top two floors of the main building, these are technically a separate AAA Five Diamond boutique hotel. There are 51 lofts here. They have their own elevators, their own concierge, and views that make you feel like you own the Strip. If you’re counting the main tower, you’re counting these, too.
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The Signature at MGM Grand
This is where the math gets fuzzy for most people. These are the three golden towers tucked behind the main resort. They are "condo-hotels."
- Tower 1
- Tower 2
- Tower 3
Totaling about 1,728 units, many of these are privately owned but managed through the MGM rental program. When people cite the "6,800 rooms" figure, they are including every single one of these suites. It’s a quieter, non-smoking, non-gaming vibe. No casino floor in these towers, which is a godsend if you have a headache.
Logistics: The Reality of 5,000 Rooms
You’ve got to think about the plumbing. The laundry. The sheer amount of ice being made every second.
Living in a 5,000-room hotel is an exercise in logistics. If you’re staying in the "West Wing" (the older, 14-story section), your walk to the pool is basically a light hike. I’m not joking. You will hit your 10,000 steps before lunch just by going from your bed to the lazy river.
The hotel staff is an army. At any given time, there are thousands of employees on-site keeping the machine running. Because of the sheer volume, check-in can be a nightmare if you arrive at 3:00 PM on a Friday. Use the mobile app. Seriously. Skip the line, get the digital key, and save forty minutes of your life.
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Is it Still the Largest?
It depends on who you ask and how they measure.
The First World Hotel in Malaysia technically holds the world record with over 7,300 rooms. In Vegas, The Venetian and Palazzo complex often claims the top spot because their two towers are physically connected, giving them over 7,000 suites.
But for a single hotel building—as in, one continuous structure under one roof—MGM Grand’s 4,762 rooms (main tower) still wears the crown in the USA.
What You Should Actually Care About
Room counts are a fun trivia fact, but if you’re actually booking a stay, the "where" matters more than the "how many."
If you want the classic Vegas experience, stay in the MGM Tower (the main one). If you’re traveling with family and want a kitchen, go for The Signature. If you’ve just won the lottery or a high-stakes poker tournament, call the Skylofts.
Actionable Insights for Your Next Visit:
- Avoid the "Hike": If you hate walking, request a room near the "Grand Elevators" during check-in. The "West Wing" is further away from the main action.
- The Signature Shortcut: There is a moving walkway that connects The Signature to the main MGM Grand casino. It’s climate-controlled, but it still takes about 8-10 minutes to traverse.
- Inventory Check: If you see a room count over 6,800 on a travel site, they are likely including The Signature. If you see 4,700–5,000, they are talking about the main green building.
Knowing the room count is great for winning a bet at the bar, but knowing which tower fits your vibe is what actually saves your vacation. Now go find that lazy river—it’s about a half-mile walk from the lobby.