Milwaukee County Zoo
Wisconsin, United States · built 1892
The Milwaukee County Zoo is a zoo in Milwaukee, Wisconsin that is operated by the Milwaukee County Parks Commission, covering an area of 190 acres (77 ha). The zoo averages about 1.3 million visitors a year and houses 3,100 animals from 350 species. The zoo is accredited by the Association of Zoos and Aquariums. In 2017, the zoo was among the first seven zoos to be certified for its "humane treatment of animals" by the American Humane Society. As of 2025, the "Humane Certified" program had grown to encompass 42 zoos and aquariums within the United States. The zoo is noted for the second birth of polar bears and siamangs in captivity and for their locally famous gorilla Samson, who lived from 1950 to 1981 and whose bones are now on display at the Milwaukee Public Museum. During World War II, a celebrity animal of the zoo was Gertie the Duck and her ducklings. The zoo is also home to one of the largest group of bonobos in one location outside their native Democratic Republic of the Congo, and has two cheetahs from the National Zoo in Washington, DC.
Park data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).