Top 12 Largest Zoos in the United States

Americans have an enduring affection for zoos, which is evident in the proliferation of over 2,400 establishments across the United States. These hubs of wildlife diversity offer immersive experiences, allowing visitors to encounter majestic creatures from various corners of the globe. Beyond mere entertainment, zoos play crucial roles in fundraising and advocacy for animal welfare, conservation, and education.

When considering a visit to the finest and the largest zoos in the United States, the variety of choices can be overwhelming. While iconic names like the San Diego Zoo and the Bronx Zoo often dominate discussions, the true measure of excellence lies in visitor experiences and reviews.

Are you curious about which zoos top the charts? Stay tuned to discover where your favorites rank and which ones are conveniently located near you. Among the multitude of zoos scattered across the nation, today’s focus is on the top 12 largest, each offering a captivating journey into the wonders of the animal kingdom.

So, let’s begin.

List of 12 Biggest Zoos in the United States

Below are the 12 largest zoos in the United States.

• Columbus Zoo and Aquarium
• Disney’s Animal Kingdom
• Minnesota Zoo
• Bronx Zoo
• Brookfield Zoo
• Riverbanks Zoo & Garden
• Smithsonian National Zoological Park
• Los Angeles Zoo
• Henry Doorly Zoo
• Detroit Zoo
• North Carolina Zoo
• San Diego Zoo Safari Park

1. Columbus Zoo and Aquarium

Spanning 580 acres, the Columbus Zoo and Aquarium hosts over 10,000 animals across 600 species. Conservation lies at the heart of its mission to ensure each creature thrives in its habitat. Alongside the zoo and aquarium, a charming amusement park offers families a well-rounded outing. As one of the largest zoos in the United States, Columbus Zoo offers visitors a remarkable experience that extends beyond mere entertainment,

Noteworthy is the zoo’s dedication to conserving endangered species like the African grey parrot, African leopard, and Black Rattlesnake. Through educational initiatives, including summer camps and visitor programs, the zoo fosters a deeper understanding of wildlife. With its vast array of species and commitment to conservation, Columbus Zoo and Aquarium offers an enriching journey into the animal kingdom.

2. Disney’s Animal Kingdom

Located within the Walt Disney World Resort in Florida, Disney’s Animal Kingdom stands as a renowned zoological theme park. Unlike traditional zoos, it seamlessly integrates captivating exhibits with exhilarating rides and shows, striking a delicate balance that prioritizes both entertainment and animal welfare. Careful consideration has been given to the well-being of the hundreds of species housed within the park, ensuring that attractions do not disturb the animals.

Remarkably, Disney’s Animal Kingdom goes beyond standard conservation efforts. It has taken steps to reduce its environmental footprint by using paper straws, biodegradable balloons, and other eco-friendly practices. This commitment reflects its dedication to minimizing environmental impact and ensuring the safety of its animal residents.
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3. Minnesota Zoo

Nestled in Apple Valley, Minnesota, the Minnesota Zoo has been captivating visitors since its establishment in 1978. Setting itself apart, the zoo pioneers a habitat-based organization for its animals rather than the conventional species-centric approach. The zoo’s expansive grounds facilitate this innovative strategy.

The Minnesota Zoo, which comprises six themed areas, offers a journey through various global habitats. The Medtronic Minnesota Trail, for instance, showcases over fifteen exhibits featuring indigenous species like the American black bear, bald eagle, and coyote. Meanwhile, Russia’s Grizzly Coast transports visitors to the Russian Far East, housing magnificent creatures such as brown bears, Amur leopards, and wild boars.

Beyond animal exhibits, the zoo boasts an outdoor amphitheater and a conservation carousel. During summers, the amphitheater hosts captivating bird shows, while evenings come alive with live music performances, adding another layer of excitement to the visitor experience.

4. Bronx Zoo

Situated within Bronx Park in New York, the Bronx Zoo, spanning 265 acres, is the largest metropolitan zoo in the United States and one of the largest nationwide. Since its establishment in 1899, the zoo has maintained a steadfast commitment to animal conservation efforts. Drawing an average of over two million visitors annually since 2009, it serves as a prominent hub of wildlife education and awareness.

Home to more than 4,000 animals representing over 650 species, the Bronx Zoo harbors many endangered or threatened species. Notably, the zoo has played pivotal roles in conservation initiatives, including the successful reintroduction of the American Bison to the wild and the Chinese alligator to its native habitat along the Yangtze River in China. Through its efforts, the Bronx Zoo continues to champion wildlife preservation on both local and global scales.

5. Brookfield Zoo

Nestled in Illinois, the Brookfield Zoo, also known as the Chicago Zoological Park, has been a beacon of wildlife preservation since its inception in 1934. Spanning 215 acres, it stands among the largest zoos in the US, renowned for its commitment to providing quality habitats for its diverse array of inhabitants.

Home to over 2,000 animals from approximately 450 different species, the zoo captivates visitors with its varied exhibits showcasing animals from around the globe. Noteworthy features include the Australia House, housing wallabies, pythons, and emus, and Desert’s Edge, home to foxes, lizards, and meerkats.

Brookfield Zoo has earned acclaim for several pioneering achievements, including hosting the first giant pandas in the United States and introducing the first fully indoor dolphin exhibit and rainforest simulation in the country. Its innovative approach to exhibit design, coupled with its dedication to animal welfare and education, continues to captivate and inspire millions of visitors annually.
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6. Riverbanks Zoo & Garden

Present in the heart of South Carolina’s capital, Columbia, Riverbanks Zoo & Garden is the state’s premier attraction. Since its inception, this sprawling sanctuary has evolved into a haven for wildlife enthusiasts and nature lovers alike. Boasting over 2,000 animals representing a diverse array of species, including mammals, reptiles, birds, and fish, the zoo offers a thrilling journey into the animal kingdom.

One of its main attractions is the Birdhouse at Riverbanks, recognized with a Significant Achievement Award by the Association of Zoos and Aquariums (AZA). Here, visitors can explore captivating exhibits like Penguin Coast, Asian Trek, and the African and South American Savannas. Beyond its vibrant animal collection, Riverbanks Zoo & Garden showcases an impressive botanical garden housing over 4,300 plant species.

Dedicated to environmental stewardship, the zoo actively participates in the “Go Green” movement, implementing sustainable practices such as solar power and water conservation. With its rich biodiversity and commitment to conservation, Riverbanks Zoo & Garden captivates over a million visitors annually, offering an enriching experience for all ages.

7. Smithsonian National Zoological Park

Established in 1889 as part of the esteemed Smithsonian Institution, the Smithsonian National Zoological Park, commonly known as the National Zoo, holds a distinguished place among America’s oldest zoos. Situated in Washington D.C., within the expansive Rock Creek Park, this institution boasts a rich history and prominence as one of the largest zoos in the nation.

Welcoming nearly two million visitors annually, the National Zoo’s Rock Creek campus spans 163 acres and offers an immersive experience with approximately 2,000 animals representing hundreds of species. Notably, admission is free, although advance ticket reservations are required for non-members.

Among its renowned exhibits, the David M. Rubenstein Giant Panda Habitat stands as a perennial favorite, captivating visitors with its beloved giant panda residents. With its blend of educational initiatives, conservation programs, and captivating exhibits, the National Zoo remains a cherished destination for visitors of all ages.

8. Los Angeles Zoo

Situated in the vibrant landscape of southern California, the Los Angeles Zoo is one of the most esteemed zoological institutions in the United States. Renowned for its innovative exhibits, the Los Angeles Zoo offers visitors immersive experiences like the Red Ape Rainforest and LAIR. The former, a sprawling mesh enclosure, recreates the lush environs of a Southeast Asian jungle and houses captivating Bornean orangutans. Meanwhile, LAIR—short for Living Amphibians, Invertebrates, and Reptiles—showcases a fascinating array of creatures, including poison dart frogs, Chinese giant salamanders, and various snake species.

The zoo’s condor breeding program has been a resounding success, a testament to its dedication to wildlife preservation. Once extinct in the wild, these majestic birds have been successfully reintroduced to several regions across the United States and Mexico, thanks to the zoo’s conservation efforts. With its blend of captivating exhibits and impactful conservation initiatives, the Los Angeles Zoo continues to inspire and educate visitors from near and far.

9. Henry Doorly Zoo

Located in Omaha, Nebraska, the Henry Doorly Zoo is a premier destination that attracts an average of two million visitors annually. Renamed in 1963 in honor of benefactor Margaret Doorly’s late husband, the zoo boasts several noteworthy attractions, including the world-renowned “Kingdoms of the Night,” featuring the largest nocturnal exhibit and indoor swamp globally. Here, visitors encounter fascinating species such as the alligator snapping turtle, naked mole rat, and Hoffmann’s two-toed sloth.

Another highlight is the Lied Jungle, one of the world’s largest indoor rainforest exhibits. Spanning two trails—one ground-level and one elevated—it showcases approximately 90 species, including a diverse array of monkeys and birds. Through its immersive exhibits and commitment to conservation, the Henry Doorly Zoo continues to captivate and educate visitors of all ages.
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10. Detroit Zoo

Inaugurated in 1928 in Michigan, the Detroit Zoo quickly became a cornerstone of family entertainment, attracting over 1.5 million visitors within its first four months. Renowned for its innovative approach, it was the first zoo in the United States to adopt habitat designs without traditional bars, emphasizing animal welfare and conservation as core principles. Today, it stands as the largest paid family attraction in the state, captivating visitors with its diverse array of exhibits.

With over 2,000 animals representing approximately 233 species, the Detroit Zoo offers an immersive journey into the natural world. Highlights include the Polk Penguin Conservation Center, renowned as the largest penguin center globally, and the Giraffe Encounter, where guests can feed these majestic creatures from a unique platform extending into their habitat. Through its commitment to education, conservation, and providing unforgettable experiences, the Detroit Zoo continues to inspire and delight visitors of all ages.

11. North Carolina Zoo

As one of the largest zoos in the United States and one of the world’s largest natural habitat zoos, the North Carolina Zoo spans an impressive 2,600 acres, with approximately 500 acres developed for public exploration. Situated in the central region of the state, 25 miles south of Greensboro, it stands as one of only two state-funded zoos in the nation, alongside the Minnesota Zoo.

The North Carolina Zoo boasts over 1,800 animals representing diverse species. Visitors can enjoy a range of amenities, including hiking trails, a butterfly garden, and a giraffe deck. The zoo’s habitats primarily showcase regions from North America, Africa, and global deserts, with an aviary recreating tropical forest conditions.

Notable features include a substantial chimpanzee population, the largest collection of Alaskan seabirds in the country, and one of the few breeding pairs of polar bears in the United States. Through its expansive size and remarkable exhibits, the North Carolina Zoo offers an enriching and immersive experience for visitors of all ages.

12. San Diego Zoo Safari Park

The San Diego Zoo Safari Park, which is one of the largest zoos in the US, is an integral part of the San Diego Zoo Wildlife Alliance, initially envisioned as a breeding facility. Established in 1972, it evolved into a natural environment zoo, boasting 3,000 animals representing 400 species and attracting around two million visitors annually. Key attractions include the expansive Asian Savanna and African Plains, sprawling over 300 acres and housing a diverse array of hoofed animals. 

Additionally, the African Woods and African Outpost exhibits, linked by visitor trails, meticulously recreate African habitats. These exhibits feature a variety of species, including vultures, giant elands, bat-eared foxes, and colobus monkeys, enhancing the park’s immersive experience. With its steadfast commitment to preserving endangered species and fostering awareness about global biodiversity, the Safari Park serves as a beacon of conservation excellence. By providing a platform for visitors to connect with nature firsthand, it inspires a deeper appreciation for the intricacies of the natural world while championing efforts to safeguard our planet’s precious wildlife for generations to come.
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A Table Comparison of the Largest Zoos in the United States: 

No.	Name	Area	Year Opened	Location	Main Attraction
1.	Columbus Zoo and Aquarium	580 acres	1927	Ohio	The Congo Expedition and Dinosaur Island Boat Ride
2.	Disney’s Animal Kingdom	580 acres	1998	Florida	Discovery Island and Dinoland USA
3.	Minnesota Zoo	485 acres	1978	Minnesota	Medtronic Minnesota Trail
4.	Bronx Zoo	265 acres	1899	New York	Congo Gorilla Forest and Jungle World
5.	Brookfield Zoo	215 acres	1934	Chicago, IL	Seven Seas Exhibit and the Motor Safari
6.	Riverbanks Zoo & Garden	170 acres	1974	South Carolina	Botanical Garden and Kangaroo Walkabout
7.	Smithsonian National Zoological Park	163 acres	1889	Washington, D.C.	The Ape House and Lemur Island
8.	Los Angeles Zoo	133 acres	1966	California	Rainforest of the Americans and Muriel’s Ranch
9.	Henry Doorly Zoo	130 acres	1894	Nebraska	The Indoor Rainforest and the Desert Dome
10.	Detroit Zoo	125 acres	1928	Michigan	Science on a Sphere and a 4-D Theatre
11.	North Carolina Zoo	2,600 acres	1976	North Carolina	Sonora Desert Region, Watani Grasslands Reserve
12.	San Diego Zoo Safari Park	1800 acres	1972	San Diego	Asian Savanna, African Plains

Final Words

To sum up, these largest zoos in the United States showcase an incredible array of wildlife and are strongly dedicated to conservation, education, and entertainment. From the expansive habitats of the San Diego Zoo Safari Park to the historical significance of the Bronx Zoo, each institution offers visitors a unique opportunity to connect with nature and explore the wonders of the animal world.

So, if you’re looking for your next zoo adventure, this guide has everything you need. Focusing on conservation, education, and entertainment, these zoos offer something for everyone, inspiring a deeper appreciation for the natural world and its inhabitants. So, whether you’re a wildlife enthusiast, a family looking for a fun day out, or someone passionate about environmental conservation, this guide ensures that your next zoo visit will be both memorable and enriching.

FAQs

How Many Zoos Are There in America?

As of 2023, there are 384 Zoos & Aquariums businesses operating in the United States, reflecting a 2% increase from the previous year.

Which Is the First-Ever Zoo in the USA?

Situated on the west bank of the Schuylkill River in Philadelphia’s Centennial District, the Philadelphia Zoo is widely recognized as the country’s first zoo. Although the Commonwealth of Pennsylvania had granted it a charter on March 21, 1859, the Civil War postponed its debut until July 1, 1874.

How Many Zoos Are in New York?

In the state of New York, there are five notable zoological institutions offering diverse experiences for wildlife enthusiasts and families alike. These establishments allow visitors to connect with animals from around the world while also serving as centers for education and conservation efforts.

These five zoos include: 

• The Bronx Zoo
• Central Park Zoo
• Queens Zoo
• Prospect Park Zoo
• New York Aquarium

What is the National Zoo of the USA, and what is it known for?

The National Zoo of the United States is the Smithsonian’s National Zoo, located in Washington, D.C. It is renowned for its diverse collection of animals and its commitment to conservation, research, and education.

Where Is the Largest Zoo in the World?

Based on land area, the North Carolina Zoo, located in Asheboro, North Carolina, USA, is considered the largest zoo in the world. It covers approximately 2,600 acres (1,052 hectares).