Free Zoos in United States

While many U.S. zoos offer free admission at various times of the year, these zoos are ALWAYS free to visit. Hurray for budget-friendly activities.  

Lincoln Park Zoo - Chicago, Illinois National Zoo - Washington, District of Columbia Saint Louis Zoo - Saint Louis, Missouri Lee Richardson Zoo - Garden City, Kansas Salisbury Zoo - Salisbury, Maryland Como Zoo - Saint Paul, Minnesota Cape May Zoo - Cape May Court House, New Jersey Henry Vilas Zoo - Madison, Wisconsin Cabrillo Marine Aquarium - San Pedro, California