When you search for the best zoo in the US, you will find many amazing places that offer close-up wildlife experiences, fun activities, and strong conservation programs. The United States has hundreds of zoos, but a few truly stand out because of their size, animal care, educational programs, and visitor experience.

In this guide, you’ll discover the top zoos in the country and what makes each one special. Whether you love big cats, rare birds, sea animals, or family-friendly attractions, there is a perfect zoo waiting for you.

Why These Are Considered the Best Zoos in the US

The zoos listed below are often called the best because they offer:

• Large and natural habitats
• Strong wildlife conservation programs
• Educational tours and interactive exhibits
• Safe and clean environments
• Fun activities for all ages

These zoos focus on protecting animals, teaching visitors, and creating unforgettable experiences.

Top 10 Best Zoos in the US

1. San Diego Zoo – California

The San Diego Zoo is often ranked as the best zoo in the US. It has more than 12,000 animals from around the world. Visitors love its open-air exhibits and beautiful landscapes. Popular animals include pandas, polar bears, and koalas.

Why visit: huge variety, modern habitats, world-famous zoo.

2. Omaha’s Henry Doorly Zoo – Nebraska

Known for its large indoor desert and rainforest exhibits, this zoo provides unique experiences you can’t find anywhere else.

Why visit: Desert Dome, Lied Jungle, and aquarium all inside one zoo.

3. St. Louis Zoo – Missouri

This is one of the best free zoos in America. It’s known for animal care and research programs, along with fun attractions for families.

Why visit: Free entry, great for kids, well-designed exhibits.

4. Bronx Zoo – New York

Located in New York City, the Bronx Zoo is one of the oldest and largest zoos in the country. It offers amazing exhibits like Tiger Mountain and Congo Gorilla Forest.

Why visit: huge space, diverse animals, strong conservation efforts.

5. Columbus Zoo and Aquarium – Ohio

This zoo is famous for its animal shows, interactive programs, and beautifully designed exhibits. It also includes a waterpark and golf course.

Why visit: great mix of animals, activities, and family fun.

6. Smithsonian’s National Zoo – Washington, D.C.

Another free zoo with world-class facilities. It is best known for its giant pandas and scientific research.

Why visit: free admission, perfect for tourists, educational programs.

7. Brookfield Zoo – Illinois

Located near Chicago, this zoo is famous for its dolphin shows and indoor rainforest experiences.

Why visit: dolphin presentations, family-friendly events.

8. Dallas Zoo – Texas

The Dallas Zoo features a massive savanna exhibit where giraffes, zebras, and elephants roam in natural-style environments.

Why visit: African savanna, safari-style experience.

9. Minnesota Zoo – Minnesota

Known for its cold-weather animals and natural forest trails, this zoo offers a relaxing, nature-focused atmosphere.

Why visit: Northern Trail exhibit, wolves, bears, and moose.

10. Indianapolis Zoo – Indiana

This zoo combines an aquarium, botanical garden, and animal exhibits in one place. It also has one of the best dolphin experiences in the country.

Why visit: dolphin interactions, variety of attractions.

Which Zoo Is Truly the Best in the US?

While the San Diego Zoo often takes the number one spot for its size, animal care, and visitor experience, the “best zoo” really depends on what you enjoy most:

• Want rare animals? → San Diego Zoo
• Want a free zoo? → St. Louis Zoo or National Zoo
• Want a desert or rainforest adventure? → Omaha’s Henry Doorly Zoo
• Want a mix of zoo + fun attractions? → Columbus Zoo

There is no single answer—each zoo offers something special.

Final Thoughts

The best zoo in the US is the one that gives you the most memorable experience. Whether you love exotic animals, interactive exhibits, or peaceful nature walks, America has incredible zoos that offer unforgettable adventures.