Brandywine Zoo is a small 4.7-acre (1.9 ha) 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. It is usually open every day, 10AM – 4PM, weather permitting.