Hours and Prices
The Zoo is Free
2025 Spring Hours
March 12 through May 11
Mondays and Tuesdays: 9 a.m.-5 p.m.
Wednesdays through Sundays: 9 a.m.-5 p.m.*
*Last entry to the Zoo is at 4:30 p.m. in preparation for ticketed Animals Aglow.
Click to expand the blocks below to see additional hours.
Memorial Day Weekend
Friday-Monday, May 23-26, 2025
8 a.m.–6 p.m.
May 27 through Aug. 17, 2025
8 a.m.–5 p.m. — *Sunday–Thursday
8 a.m.–6 p.m. — *Friday–Saturday
*Friday, June 20, 2025
8 a.m.–noon
Zoo closes early for ZOOFARI
*Wednesday, Aug. 6, 2025
8 a.m.-3:30 p.m.
Aug. 18-29, 2025
9 a.m.–5 p.m. daily**
**Friday, Aug. 22, 2025
9 a.m.–3 p.m.
Zoo closes early for Jammin' at the Zoo
Labor Day Weekend
Saturday-Monday, Aug. 30-Sept. 1, 2025
8 a.m.–6 p.m.
The Saint Louis Zoo's operating hours are subject to change.
Paid Attractions and Services
The Zoo is always free. Paid attractions are included in the Adventure Pass.
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4d Theater
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Conservation Carousel
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Closed for the season
Sea Lion Show
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Closed for the season
Stingrays at Caribbean Cove
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Zooline Railroad
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Parking
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Rentals
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Save with a Zoo Membership!
Want FREE parking, FREE rides on Zooline Railroad, and FREE admission to Sea Lion Show and other attractions? Don’t pass on this great value!
Group Registration & Discounts
Register your group visit and learn about discounts for groups of 15 or more.