Henry Vilas Zoo

Henry Vilas Zoo is a 28-acre public zoo in Madison, Wisconsin, United States. Owned by Dane County and operated with support from the Henry Vilas Park Zoological Society, it is one of the remaining admission-free zoos in North America. The zoo receives more than 750,000 visitors annually and is accredited by the Association of Zoos and Aquariums (AZA), placing its animal care, conservation, education, and operational practices within the standards of the professional zoo sector. The institution traces its origins to a 1904 land gift from former United States senator William Freeman Vilas and his wife, Anna Vilas. The family transferred 50 acres to the city under conditions requiring the land to be used as a public park and pleasure ground. The park was named for the couple’s son, Henry, who had died in 1899 at age 27 from complications associated with diabetes. The family’s requirement that the park remain free of admission charges became a defining feature of the zoo’s identity and public mission. Animal exhibits were established on 28 acres of the park by 1911, marking the creation of the zoo. The Madison Zoological and Aquarium Society was formed in 1914 and adopted the name Henry Vilas Park Zoological Society in 1926. The society was incorporated as a nonprofit corporation in 1964 and continues to provide institutional and fundraising support. This public-private operating model allows Dane County to retain ownership while the society helps finance capital improvements, education, conservation, and visitor programs. The zoo’s collection includes mammals, birds, reptiles, amphibians, fish, and insects from North America and other regions. Its major areas include Arctic Passage, the George Fait North American Prairie, Wisconsin Heritage Trail, Tropical Rainforest Aviary, Big Cats Exhibit, Primate House, Savanna and High Plains, the Children’s Zoo, and the Discovery Center and Herpetarium. These areas combine visitor interpretation with habitat-based displays for species such as polar bears, grizzly bears, harbour seals, American bison, African lions, Amur tigers, Bornean orangutans, lemurs, white rhinoceroses, Bactrian camels, red pandas, flamingos, tropical birds, reptiles, amphibians, and invertebrates. Capital redevelopment has been a recurring part of the zoo’s modern history. For its centennial, the Henry Vilas Park Zoological Society launched the Zoo Century campaign to support a planned $27 million redevelopment over a ten-year period. The resulting Arctic Passage opened in 2015 with expanded habitats for polar bears, grizzly bears, and harbour seals, including underwater viewing areas and sustainability features such as solar panels, rainwater collection, and underground water storage. The Wisconsin Heritage Trail opened in 2016, while earlier projects included the Tropical Rainforest Aviary in 2000 and the Primate House in 1995. Beyond exhibits, the zoo presents educational and community activities. Its annual Zoo Run Run is a 5K-to-10K run and walk that begins and ends at the zoo and uses portions of the nearby University of Wisconsin–Madison Arboretum. The zoo describes its broader mission in terms of conserving and protecting the natural living world, while its free-admission model emphasizes public access to informal learning and family recreation. The institution has also faced safety and governance controversies. In 1988, a man entered a polar-bear enclosure and a responding police officer shot the bear after other efforts failed to deter it. In 2014, a visitor entered a giraffe enclosure and was kicked and cited by Madison police. In 2022, the resignations of the zoo’s only two Black zookeepers prompted Dane County to examine allegations involving management, racism, retaliation, staffing diversity, and animal welfare. A county review reported a toxic work environment and management favoritism, while a subsequent independent investigation found no evidence of a hostile work environment or discrimination but identified isolated historical concerns involving animal treatment. These events form part of the zoo’s recent public accountability history.

Henry Vilas Zoo developed from a public-park land grant made to the city of Madison in 1904 by William Freeman Vilas, a former United States senator, and his wife, Anna Vilas. The 50-acre gift was made subject to the condition that the property remain a public park and pleasure ground. It was named for the Vilases’ son, Henry, who had died in 1899 at age 27 from complications associated with diabetes. The family also required that the park remain free to visitors, a principle that continues to distinguish the zoo. By 1911, 28 acres of the park had been set aside for animal exhibits, establishing the zoo. The Madison Zoological and Aquarium Society was organized in 1914 to support the institution. In 1926 it became the Henry Vilas Park Zoological Society, the name under which the supporting organization continues to operate. The society was incorporated as a nonprofit corporation in 1964. Dane County owns the zoo, while the zoological society supports fundraising, development, programming, and other institutional needs. The zoo expanded its role from a local animal display into a modern zoological institution with educational, conservation, and habitat-based objectives. It now maintains collections spanning mammals, birds, reptiles, amphibians, fish, and insects from several continents. Its AZA accreditation reflects participation in professional standards governing animal welfare, veterinary care, conservation, education, and institutional management. Several major construction projects shaped the contemporary visitor experience. The Tropical Rainforest Aviary opened in 2000 following a $4.2 million project. The Primate House opened in 1995 and provides space for Bornean orangutans, black-and-white ruffed lemurs, and ring-tailed lemurs. For the zoo’s centennial, the Henry Vilas Park Zoological Society launched the Zoo Century campaign, which aimed to raise $27 million for redevelopment over ten years. One of the campaign’s central projects, Arctic Passage, opened on May 23, 2015. It introduced larger, more naturalistic habitats for polar bears, grizzly bears, and harbour seals, underwater viewing, a stream for grizzly bears, a restaurant, and sustainability infrastructure including solar panels, rainwater harvesting, and underground storage capable of conserving more than two million gallons of water. Wisconsin Heritage Trail opened in 2016. The area connects animal exhibits with interpretation of Wisconsin’s mining heritage and includes habitats for American badgers and rescued sandhill cranes. Other principal areas include the George Fait North American Prairie, Big Cats Exhibit, Savanna and High Plains, Children’s Zoo, and Discovery Center and Herpetarium. The Children’s Zoo includes the sustainably designed Red Barn, a goat-feeding activity, a train, a carousel, a koi pond, and exhibits for species including red pandas, white-handed gibbons, meerkats, aardvarks, porcupines, tortoises, and flamingos. The zoo also operates public programs and events. Its annual Zoo Run Run combines a 5K-to-10K run and walk with a course that begins and ends at the zoo and uses parts of the adjacent University of Wisconsin–Madison Arboretum. Through its exhibits, events, and educational work, the zoo presents itself as a conservation institution and as an accessible public resource. Its continued free admission makes it one of a small number of free zoos remaining in North America. The institution’s history includes notable safety incidents and later governance scrutiny. In March 1988, a 28-year-old man with a history of mental illness jumped a moat and climbed a wall into a polar-bear enclosure. A responding officer shot the male polar bear Chief when the animal could not be scared away, and the man was taken to UW Health University Hospital for psychiatric evaluation. In August 2014, a woman climbed into a giraffe enclosure, where she was licked and kicked in the face; Madison police later cited her. In 2022, the resignations of the zoo’s only two Black zookeepers led Dane County to investigate allegations concerning perceived poor management, racism, retaliation, a lack of employees of color, animal welfare, and favoritism. The county’s review described a toxic work environment and identified concerns about staffing and management practices. The county then authorized an independent investigation. That investigation reportedly found no evidence of a hostile work environment or discrimination, although it found some evidence of isolated historical problems involving animal treatment. The episode increased public attention on the zoo’s workplace culture, governance, and accountability.

• 2022

  County and independent investigations examine zoo practices

  [1]Henry Vilas Zooen.wikipedia.org

  Dane County investigated workplace and animal-care concerns after the resignation of two Black zookeepers, followed by an independent review.

• 2016

  Wisconsin Heritage Trail opens

  [1]Henry Vilas Zooen.wikipedia.org

  A new area opened with mining-history interpretation and exhibits for American badgers and rescued sandhill cranes.

• 2015

  Arctic Passage opens

  [1]Henry Vilas Zooen.wikipedia.org

  The major redevelopment project opened with habitats for polar bears, grizzly bears, and harbour seals, plus environmental sustainability systems.

• 2000

  Tropical Rainforest Aviary opens

  [1]Henry Vilas Zooen.wikipedia.org

  A $4.2 million aviary opened to house tropical birds and other rainforest species.

• 1995

  Primate House opens

  [1]Henry Vilas Zooen.wikipedia.org

  The zoo opened a dedicated Primate House for Bornean orangutans and two lemur species.

• 1964

  Zoological society becomes incorporated

  [1]Henry Vilas Zooen.wikipedia.org

  The Henry Vilas Park Zoological Society was incorporated as a nonprofit corporation.

• 1926

  Supporting society adopts the Henry Vilas name

  [1]Henry Vilas Zooen.wikipedia.org

  The Madison Zoological and Aquarium Society became the Henry Vilas Park Zoological Society.

• 1914

  Madison Zoological and Aquarium Society is founded

  [1]Henry Vilas Zooen.wikipedia.org

  A supporting society was created to assist the developing zoo.

• 1911

  Animal exhibits are established

  [1]Henry Vilas Zooen.wikipedia.org

  Twenty-eight acres of the park were partitioned for an animal exhibit, marking the creation of Henry Vilas Zoo.

• 1904

  Vilas family land gift establishes the public park

  [1]Henry Vilas Zooen.wikipedia.org

  William Freeman Vilas and Anna Vilas gave Madison 50 acres for a public park and pleasure ground, with a condition that the park remain free of admission.

A free, community-oriented, conservation-focused urban zoo that combines accessible family recreation with AZA-accredited animal care, environmental education, and habitat-based exhibits.

• Zoo exhibit · 2015

  Arctic Passage

  Opened in 2015 as a principal Zoo Century redevelopment project, Arctic Passage provides expanded, naturalistic habitats for polar bears, grizzly bears, and harbour seals. Visitors can view animals underwater, and the grizzly-bear habitat includes a stream. The area also incorporates solar panels, rainwater collection, and underground storage designed to conserve more than two million gallons of water. A restaurant was included in the broader development.

• Zoo exhibit · 2000

  Tropical Rainforest Aviary

  The Tropical Rainforest Aviary opened in 2000 following a $4.2 million construction project. It houses tropical birds such as blue-and-yellow macaws, blue-crowned motmots, laughing kookaburras, white-cheeked turacos, and sunbitterns, as well as mammals and fish including Geoffroy’s marmosets, red-rumped agoutis, red-bellied piranhas, and ocellate river stingrays. Adjacent areas include capybaras and North American river otters.

• Zoo exhibit · 1995

  Primate House

  Opened in 1995, the Primate House is dedicated to three primate species: Bornean orangutans, black-and-white ruffed lemurs, and ring-tailed lemurs. The building forms part of the zoo’s collection of habitat-focused animal areas and supports public interpretation of primate biology and conservation.

• Zoo exhibit · 2016

  Wisconsin Heritage Trail

  Wisconsin Heritage Trail opened in 2016 and combines interpretation of Wisconsin’s mining history with animal exhibits. Its collection includes American badgers and rescued sandhill cranes, linking regional cultural history with wildlife education.

• Family exhibit and visitor attraction

  Children’s Zoo

  The Children’s Zoo is designed for family visits and interactive learning. It includes the sustainably designed Red Barn, where visitors can hand-feed goats, along with exhibits for red pandas, white-handed gibbons, porcupines, meerkats, aardvarks, tortoises, and flamingos. A koi pond, train, and carousel broaden the area’s recreational offering.

• Education center and zoo exhibit

  Discovery Center and Herpetarium

  The Herpetarium presents reptiles and amphibians including Aldabra giant tortoises, American alligators, green anacondas, massasaugas, alligator snapping turtles, Gila monsters, geckos, desert tortoises, and several poison-dart frog species. The Discovery Center adds hands-on learning with animals such as giant African millipedes, lemur leaf frogs, Madagascar hissing cockroaches, and Seba’s short-tailed bats.

• Community event

  Annual Zoo Run Run

  Zoo Run Run is an annual 5K-to-10K run and walk that starts and finishes at the zoo. The route uses portions of the adjacent University of Wisconsin–Madison Arboretum and serves as a recurring community and fundraising-oriented event associated with the zoo.

• 2022

  Workplace culture and animal-care investigations

  Following the resignations of the zoo’s only two Black zookeepers, Dane County investigated allegations involving management, racism, retaliation, a lack of employees of color, animal welfare, and favoritism. The county review described a toxic work environment. A subsequent independent investigation found no evidence of a hostile work environment or discrimination but identified some isolated historical concerns about animal treatment.

  Source

Read more

• 2011Zoo Century

  Madison · Dane County · Wisconsin

  For the zoo’s centennial, the Henry Vilas Park Zoological Society launched Zoo Century, a capital campaign intended to support approximately $27 million in redevelopment over the following decade. Planned work included Arctic Passage and a redesigned Children’s Zoo.

  Outcome. The campaign supported major redevelopment, including the opening of Arctic Passage in 2015. The source material does not specify whether the full fundraising target was reached.

  Source

• 2022

  County-authorized review of management practicesStrategy

  Background

  Resignations by the zoo’s two Black zookeepers and related allegations led Dane County to examine workplace culture, staffing diversity, management conduct, and animal welfare.

  Action taken

  Dane County conducted an initial review and authorized an independent investigation.

  Aftermath

  The county review raised concerns about workplace conditions, while the independent investigation found no evidence of systemic hostile-environment or discrimination claims but noted isolated historical animal-treatment issues.

  Source

• 2015

  Opening of Arctic PassageProduct launch

  Background

  The zoo sought to replace or improve older animal facilities with more naturalistic habitats and stronger visitor interpretation.

  Action taken

  The zoo opened Arctic Passage with habitats for polar bears, grizzly bears, and harbour seals, underwater viewing, a restaurant, and water- and energy-saving infrastructure.

  Aftermath

  Arctic Passage became one of the zoo’s principal modern exhibits and a central result of the Zoo Century redevelopment program.

  Source

• 2011

  Launch of a centennial redevelopment strategyStrategy

  Background

  The zoo used its centennial as an opportunity to modernize exhibits and visitor infrastructure while maintaining its free-admission identity.

  Action taken

  The Henry Vilas Park Zoological Society initiated the Zoo Century campaign, with a stated redevelopment plan of $27 million over ten years.

  Aftermath

  The strategy produced major new and renovated visitor areas, including Arctic Passage and Wisconsin Heritage Trail.

  Planned redevelopment investment. $27 million planned (Ten-year period following the zoo’s centennial)

  Source

1. 1Henry Vilas Zooen.wikipedia.org
2. 2Henry Vilas Zoo official websitevilaszoo.org