To get your brand in front of thousands of people at once, you need a venue that can handle high-capacity crowds.

Key Takeaways

• The nation’s biggest convention centers are built with millions of square feet.
• These venues attract tens of thousands of visitors, making them the best places for networking.
• Successfully exhibiting at a large trade show takes smart planning and venue-specific expertise.

The biggest convention centers in the U.S. are large-scale event hubs designed to host the country’s most influential trade shows, expos, and conventions. From technology showcases to industry-specific events, these venues welcome hundreds of thousands of attendees each year.

What Are the Biggest Convention Centers in the United States?

To help you plan your next event, here’s a look at the top trade show venues across the country that offer the most space and the best amenities.

1. McCormick Place – Chicago, IL

McCormick Place is the largest convention center in the United States. The campus features about 2.6 million square feet of exhibit halls. In fact, there’s a whopping 1.2 million square feet on a single level, with 50-foot ceilings and column-free space. 

That convention complex’s layout makes it easy to host multiple expansive shows at once. You also get 170 meeting rooms, roughly 600,000 square feet of meeting space, and six ballrooms, including one that spans 100,000 square feet. 

Events like the Chicago Auto Show, a popular automotive trade show that draws nearly 217,000 attendees, show just how easily McCormick Place handles huge crowds.

2. Las Vegas Convention Center – Las Vegas, NV

The Las Vegas Convention Center is built for all of the biggest Las Vegas trade shows. The facility dedicates 2.5 million square feet to exhibit space. An additional 390,000 square feet is used for 225 meeting rooms on campus. 

Two massive lobbies connect the halls, allowing multiple conventions to run at the same time. The SEMA Show alone fills over 1.2 million square feet and attracts more than 160,000 automotive professionals. CES brings in about 142,000 attendees, while the NAB Show draws around 55,000 broadcasting and media experts. With roughly 150,000 nearby hotel rooms, LVCC is designed for nonstop, high-volume events.

3. Orange County Convention Center – Orlando, FL

The Orange County Convention Center provides about 2.1 million square feet of exhibition space, spread across two buildings connected by pedestrian bridges. Inside, you’ll find two general-assembly areas measuring 92,000 square feet each, as well as 74 meeting rooms that support events of every size. 

OCCC’s location puts you close to hotels, dining, and attractions, which helps support big crowds. MEGACON Orlando regularly draws more than 160,000 fans, while industry events like Global Pet Expo and major medical conferences show how well the OCCC handles both entertainment and professional conventions.

4. Georgia World Congress Center – Atlanta, GA

The Georgia World Congress Center anchors one of the largest convention centers in the U.S. You get about 1.5 million square feet of flexible exhibit space across 12 exhibit halls, plus 98 meeting rooms and multiple ballrooms. The center connects directly to stadiums, hotels, and Centennial Olympic Park through covered walkways. 

Top trade shows thrive here. MODEX welcomed nearly 49,000 professionals across 580,000 square feet, while IPPE used more than 620,000 square feet of exhibit space. Add fan events like Dragon Con with 75,000+ attendees, and it’s clear the GWCC is built for scale.

5. Ernest N. Morial Convention Center – New Orleans, LA

The Ernest N. Morial Convention Center offers 1.1 million square feet of exhibition space and 140 meeting rooms, making it the biggest convention center in the South.

The venue also includes a 60,300-square-foot ballroom and overlooks the Mississippi River. Events like the International WorkBoat Show draw 13,000+ maritime professionals, while the Essence Festival brings tens of thousands of guests through the space each day.

6. Mandalay Bay Convention Center – Las Vegas, NV

Mandalay Bay Convention Center includes 1 million square feet of exhibit space, all connected directly to the Mandalay Bay Resort. Recent renovations added a gorgeous 20,000-square-foot foyer. 

Industry gatherings like Shoptalk bring in over 10,000 retail and technology leaders, while fashion events such as MAGIC Las Vegas attract tens of thousands of industry professionals, proving the center’s ability to handle high-volume business events.

7. Kay Bailey Hutchison Convention Center – Dallas, TX

The Kay Bailey Hutchison Convention Center plays a significant role in Dallas’s event scene. The city-owned facility offers about 1 million square feet of exhibit space, along with three ballrooms, 88 meeting rooms, a 9,816-seat arena, and a 1,750-seat theater. 

The complex welcomes more than 1.5 million visitors each year and connects directly to the 1,001-room Omni Dallas Hotel via skybridge. Events range from large auto expos to pop-culture conventions like Fan Expo Dallas, which attracts over 60,000 attendees.

8. Venetian Convention and Expo Center – Las Vegas, NV

The Venetian Convention and Expo Center offers more than 900,000 square feet of exhibit space and over 2.2 million square feet of total event space. Connected directly to The Venetian and Palazzo resorts, the center (formerly known as The Sands Expo Center) gives exhibitors and attendees convenient access to hotels, dining, and entertainment, making it a top choice for major trade shows and corporate events.

Design a Custom Booth for the Largest Convention Centers in the U.S.

Successfully exhibiting at the biggest convention centers in the United States takes experience, planning, and venue-specific know-how. With more than 30 years of experience, LV Exhibit Rentals helps businesses design custom booths that aren’t overlooked on massive showroom floors.

LV Exhibit Rentals follows a streamlined, turnkey process. We start with a consultation to learn about your brand and the specific rules of the venue. From there, we handle the custom booth design and provide logistics, on-site setup, and support during the show. You don’t have to worry about regulations, freight timing, or last-minute adjustments because we handle it all.

If you’re ready to exhibit at major trade show venues with confidence, get a quote and take the stress out of your next big event.