Largest Zoo in the World by Area
The largest zoo in the world by land area is Berlin Zoological Garden, which spans 35 hectares in Berlin, Germany, and houses more than 1,500 species and around 20,000 animals. It is consistently ranked as the largest zoo in the world by area and species diversity, according to the latest public data from zoo industry reports and tourism authorities.
Berlin Zoological Garden opened in 1844 and is managed by the city of Berlin with support from the Zoologischer Garten Berlin foundation, which oversees conservation, breeding, and research programs. The zoo collaborates with international partners such as the World Association of Zoos and Aquariums and publishes annual reports on collection size, attendance, and conservation impact.
Largest Zoo by Species Count and Animal Numbers
By species count, Berlin Zoological Garden remains the largest zoo in the world, with over 1,500 species and 20,000 animals, making it the most species-rich zoo globally. The collection includes mammals, birds, reptiles, amphibians, fish, and invertebrates, with a strong focus on endangered species and coordinated breeding programs.
The zoo operates multiple specialized facilities, including the Elephant Park, the Gorilla Tropical World, and the Aquarium Berlin, which together form one of the most comprehensive zoological complexes in the world. Berlin Zoological Garden receives millions of visitors annually and generates significant revenue from admissions, memberships, and partnerships with conservation organizations.
Comparison With Other Major Zoos
Other large zoos such as the Columbus Zoo and Aquarium in Ohio, the San Diego Zoo in California, and the Toronto Zoo in Canada are frequently cited in discussions of the largest zoo in the world, but they have fewer species and animals than Berlin Zoological Garden. The Columbus Zoo spans over 234 hectares and houses around 10,000 animals, while the San Diego Zoo covers 40 hectares and holds more than 650 species.
Rankings of the largest zoo in the world often vary depending on whether the metric is land area, number of species, or total animal count, but Berlin Zoological Garden leads in combined species diversity and collection size. For detailed financial and operational data on major zoological institutions, investors and researchers can refer to annual reports and industry analyses available on platforms such as Forbes and the Association of Zoos and Aquariums.