Look for the Association of Zoos and Aquariums (AZA) logo whenever you visit a zoo or aquarium as your assurance that you are supporting a facility dedicated to providing excellent care for animals, a great experience for you, and a better future for all living things. Find the great zoo or aquarium near you by searching by the states or countries listed on this page.
Since the opening of Brookfield Zoo in 1934, the Chicago Zoological Society has had an international reputation for taking a cutting-edge role in animal care and conservation of the natural world. Among its historical firsts are indoor multispecies exhibits, zoo nutrition residencies, methods for animal husbandry, and medical care that includes successful brain surgery for a gorilla.
The Philadelphia Zoo’s 42-acre Victorian garden is home to more than 1,300 animals, many of them rare and endangered. The Zoo, fulfilling its mission of conservation, science, education and recreation, supports and engages in conservation efforts to protect endangered species around the world. Cheetahs, hippos, giraffes and much more make the Zoo Philadelphia's leading family attraction with over 1.2 million visitors last year. Like many other Philadelphia landmarks and institutions, the Philadelphia Zoo is an American first. The charter establishing the Zoological Society of Philadelphia was approved and signed on March 21, 1859. Due to the Civil War, however, it was another 15 years before America's first zoo was ready to open.
The mission of the Saint Louis Zoo is to conserve animals and their habitats through animal management, research, recreation, and educational programs that encourage the support and enrich the experience of the public.
The 100-acre (40-hectare) Zoo is home to over 3,700 rare and endangered animals representing more than 650 species and subspecies, and a prominent botanical collection with more than 700,000 exotic plants. It is located just north of downtown San Diego in Balboa Park.
The National Zoological Park is a part of the Smithsonian Institution, the world's largest museum and research complex. The Smithsonian includes 18 museums and galleries, as well as the National Zoo. We are a 163-acre zoological park set amid Rock Creek Park in the heart of Washington, D.C. Open to the public 364 days a year, we are home to 2,000 individual animals of nearly 400 different species. Our best known residents are our giant pandas, Tian Tian, Mei Xiang, and their cub, Tai Shan.