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Summer Zoo Weekends Begin

  • Saint Louis Zoo 1 Government Drive St. Louis, Mo 63110 United States (map)

2021 Summer Hours

The Zoo is open extended hours* throughout Prairie Farms Dairy Summer Zoo Weekends!

May 14 – August 15

  • Sunday through Thursday: 8 a.m.-5 p.m.

    • 4:30 closing on Thursdays, May 27, June 17, July 15, August 12 for ticketed Night at the Zoo

  • Friday and Saturday: 8 a.m.-7 p.m.

May 28 – 31 (Memorial Day Weekend)

  • Friday through Monday: 8 a.m.-7 p.m.

August 16 – October 14

  • Daily: 9 a.m.-5 p.m.

September 4 – 6 (Labor Day Weekend)

  • Saturday through Monday: 8 a.m.-7 p.m.

*Some exhibits and attractions may open later or close earlier than the posted times. 

Zoo Reservations Required to Visit

All Zoo guests, including those attending these summer events, must make a free, timed reservation online in advance to enter the Zoo. Make a reservation up to seven days prior to the date of visit. Daily attendance is limited to help maintain social distancing within the Zoo. 

MAKE A ZOO RESERVATION