Saint Louis Zoo

About Saint Louis Zoo

Free zoo with large mammals & penguins. Free 90-acre zoo featuring animals such as penguins, bears & elephants, plus a train ride (fee). Saint Louis Zoo is free admission and has been rated the #1 zoo in America multiple times, making it one of the most accessible premier zoological institutions in the country. Rated 4.8 out of 5 stars by 39,648 visitors.

💬 What Visitors Say

• 💬Saint Louis Zoo is completely free to enter, making it exceptional value. Maximize savings by getting an Adventure Pass for special seasonal events like Animals Aglow (starts March 13) and Boo at the Zoo, which offer extended hours at reasonable prices and won't break the bank.
• 💬Plan for at least a full day to explore the 90-acre zoo with 450 animal species. The park is large and tiring to walk, especially with young children, so wear comfortable shoes and consider renting a stroller or electric convenience vehicle on a first-come, first-served basis if needed.
• 💡Bring young children during weekday visits when crowds are lighter, as the zoo's massive size makes it more manageable. The zoo is highly stroller-friendly with plenty of open, leisurely walking spaces and sensory-inclusive experiences available for guests with sensory needs.
• 💡Take advantage of the knowledgeable staff throughout the zoo who can provide detailed information about animals and species. Ask them about exhibits you're particularly interested in—the zoo features unique attractions like the historic 1904 Flight Cage from the World's Fair that many visitors miss.
• 💡Attend special educational programs including keeper talks, night hikes, and camps to deepen your understanding of animals and conservation. These programs provide interactive learning opportunities that complement the self-guided zoo experience.