Cosley Zoo is an AZA-accredited zoo located in Wheaton, Illinois. It is a facility of the Wheaton Park District and open year-round. The zoo, which is situated on 5 acres of land, is built on the site of a historic train station and consists of domestic animals, as well as wildlife that is native to North America. The zoo holds various youth-directed programs, including a Junior Zookeepers program, birthday parties/facility rentals, and holiday events.