Brandywine Zoo is a small 12acre zoo that opened in 1905 in Brandywine Park in Wilmington, Delaware, United States. It is located on the banks of the Brandywine River. The zoo is managed by the Delaware Division of Parks and Recreation and supported by the Delaware Zoological Society, and is open daily weather permitting.The Brandywine Zoo has been a member of the Association of Zoos and Aquariums (AZA) since 1981.