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A visit to a Zoo in the United States is a wonderful way to experience wildlife up close and enjoy educational exhibits with family and friends. From coast to coast, millions of visitors explore world-famous zoos every year. Whether you wish to see rare animals, learn about conservation efforts, or enjoy interactive displays, each large zoo in the United States has something special. Discover nature’s wonders and be amazed by these inspiring sanctuaries dedicated to protecting wildlife.
10 Best Zoos In United States
Discover these top 10 zoos in the United States that offer unforgettable wildlife experiences:
1. San Diego Zoo
Photo: Cburnett / Wikimedia Commons
The San Diego Zoo in California is one of the most renowned and innovative zoos in the United States. Spanning 100 acres in Balboa Park, it is home to over 3,500 animals from more than 650 species. It was the first zoo to create open-air, cage-free exhibits that mimic natural habitats, offering a more humane experience. From koalas and elephants to the famous giant pandas (now retired), the zoo offers amazing wildlife experiences and is known for its important conservation work worldwide.
Location: San Diego, California
Timing: 9 AM – 6 PM
2. Bronx Zoo
Photo: Tdorante10 / Wikimedia Commons
Bronx Zoo is the United States’ largest metropolitan zoo, covering 265 acres in the heart of New York City. It houses over 10,000 animals across 700 species and is known for its popular attractions like the Congo Gorilla Forest, Tiger Mountain, and World of Birds. As one of the country’s leading zoos, it plays a major role in global conservation efforts, helping protect endangered species. Bronx Zoo is more than just a zoo – it is a place that inspires care for nature.
Location: Bronx, New York
Timing: 10 AM – 5 PM
3. Smithsonian’s National Zoo
Photo: O01326 / Wikimedia Commons
Smithsonian National Zoo is a historic and research-focused Zoo of the United States in Washington, D.C. It was opened in 1889 and is among the oldest and most popular zoos in the United States. It is spread over 163 acres and accommodates about 2,000 animals of nearly 400 species, including giant pandas, lions, cheetahs, and orangutans. Being one of the prime zoos of the United States, it is part of the Smithsonian Institution and contributes immensely towards animal conservation and scientific research worldwide.
Location: Washington, D.C.
Timing: 8 AM – 4 PM
4. Columbus Zoo And Aquarium
Photo: Adolphus79 / Wikimedia Commons
Columbus Zoo and Aquarium is a world-famous zoo in Powell, Ohio, United States, offering both land and aquatic animal experiences. Home to over 10,000 animals across six themed areas, it features landmarks like the Heart of Africa, Asia Quest, and Shores & Aquarium. The zoo gained international fame under Jack Hanna’s leadership, promoting wildlife conservation and education. Today, it remains active in protecting endangered species, supporting over 70 global conservation programmes and giving visitors a real chance to connect with wildlife.
Location: Powell, Ohio
Timing: 9 AM – 5 PM
5. St. Louis Zoo
Photo: Knar Bedian / Wikimedia Commons
St. Louis Zoo is a world-famous United States zoo offering free admission and unmatched wildlife experiences. Situated in the centre of Forest Park, it is a 90-acre Zoo that shelters more than 18,000 animals. This world-famous zoo in the United States is renowned for its cutting-edge animal care practices and visitor-centric design. As a renowned Zoo in the United States, it is involved in hundreds of endangered species breeding and research programs. The zoo’s attractions include River’s Edge, Sea Lion Sound, and Polar Bear Point.
Location: St. Louis, Missouri
Timing: 9 AM – 5 PM
6. Houston Zoo
Photo: Rasar90 / Wikimedia Commons
The Houston Zoo is well-known in the United States, located in Hermann Park in Texas. With over 6,000 animals from 900 species, this is one of the most visited and well-known zoos in the United States. Spanning over 55 acres, this famous zoo in the United States boasts interactive exhibits like the African Forest, McNair Asian Elephant Habitat, and the Kipp Aquarium. Visitors to this Zoo in the United States get to feed giraffes, observe sea lions, and watch educational wildlife shows.
Location: Houston, Texas
Timing: 9 AM – 5 PM
7. Denver Zoo
Photo: Donlammers / Wikimedia Commons
Denver Zoo is a leading Zoo in the United States located in the heart of City Park in Colorado. With over 3,000 animals, it is a world-famous Zoo in the United States with an interactive layout and vibrant atmosphere. It covers 80 acres and features exhibits like Predator Ridge, Toyota Elephant Passage, and Primate Panorama. This major zoo in the United States is famous for its sustainability initiatives and advanced animal care protocols. As a guest, you will have close-up experiences and interactive programs that maximize learning.
Location: Denver, Colorado
Timing: 10 AM – 5 PM
8. Omaha’s Henry Doorly Zoo And Aquarium
Photo: Algy O’Connell / Wikimedia Commons
Omaha’s Henry Doorly Zoo and Aquarium is one of the top zoos in the United States, known for its impressive size and innovation. Located in Nebraska, it features the world’s largest indoor desert and the biggest indoor rainforest in North America. The zoo is home to over 17,000 animals across 960 species. Visitors can explore amazing spots like the Desert Dome, Lied Jungle, and Kingdoms of the Night. It also leads important work in animal research, conservation, and habitat creation.
Location: Omaha, Nebraska
Timing: 9 AM – 5 PM
9. Zoo Miami
Photo: Averette / Wikimedia Commons
Zoo Miami is a large and popular zoo in sunny Florida, United States. Spanning 750 acres, it is one of the biggest and most eco-friendly zoos in the country. Home to over 3,000 animals from more than 500 species, it offers open-air exhibits and cage-free enclosures. Divided into regions like Asia, Africa, and Amazonia, it makes wildlife discovery fun and educational. Visitors can also enjoy pedal boats, tram tours, and animal feeding stations for an even better experience.
Location: Miami, Florida
Timing: 10 AM – 5 PM
10. Philadelphia Zoo
Photo: Jim, the Photographer / Wikimedia Commons
The Philadelphia Zoo is the first United States Zoo, founded in 1874. It is a historic and renowned Zoo in the United States due to innovation and architecture. It is 42 acres in size and home to approximately 1,300 animals, ranging from rare and endangered species. This large zoo in the United States boasts the “Zoo360” animal travel system, mesh overpasses where animals can walk between habitats. Its attractions include Big Cat Falls, McNeil Avian Center, and PECO Primate Reserve.
Location: Philadelphia, Pennsylvania
Timing: 9:30 AM – 5 PM
A tour of a zoo in the United States is more than just spotting animals—it’s a journey into conservation, education, and biodiversity. The best zoos here are thoughtfully designed to offer fun and learning for visitors of all ages. Whether it’s a family day out or an educational visit, exploring a zoo helps you enjoy wildlife and support its future. Book your adventure with TripXl for an unforgettable experience.
Cover Photo: Noah Grezlak / Wikimedia Commons
