The third oldest zoo in the USA was established in 1875 in which New York city?

Founded in 1875, the Buffalo Zoo, located at 300 Parkside Ave in Buffalo, New York, is the third oldest zoo in the United States. Each year, the Buffalo Zoo welcomes approximately 400,000 visitors and is the second largest tourist attraction in Western New York; second only to Niagara Falls. Located on 23.5 acres (9.5 ha) of Buffalo’s Delaware Park, the zoo exhibits a diverse collection of wild and exotic animals, and more than 320 different species of plants. The zoo is open year-round.

The zoo traces its history to the mid-19th century when Jacob E. Bergtold, a Buffalo furrier, presented a pair of deer to the city of Buffalo. To provide the deer with room to graze, Elam R. Jewett, the publisher of the Buffalo Daily Journal, offered to house the deer on his estate. Simultaneously, plans were being made for the municipal North Park (today's Delaware Park), and Mayor William F. Rogers hired landscape architect, Frederick Law Olmsted, to include a zoo as part of the park's design. Five years after, the deer were donated, more animals were added to the collection, and the first permanent building was erected, signifying the establishment of the Buffalo Zoological Gardens in 1875.