Free Zoo Days
ExxonMobil is the generous sponsor of Free Zoo Days.
Free Zoo Days presented by ExxonMobil at Houston Zoo are provided once a month, on the first Tuesday of each month, from open until closing. Online reservations are required for all non-member guests at this time. Tickets will not be available at the gate.
Tickets for July and August are SOLD OUT.
Upcoming 2026 Dates:
September 1
October 6
November 3
December 1
Due to high demand, Free Zoo Day tickets are not guaranteed.
Additional Details
- This offer includes Zoo admission.
- Admission to Zoo Lights is not included.
- Carousel, giraffe feeding, and other attractions are available at regular price; they are not free.
- You may bring in outside food and drink (glass containers and straws are not permitted.) Bring a water bottle and use our free refilling stations. Concessions will be available but are not included with your free admission.
FREE ZOO DAYS SPONSORED BY EXXONMOBIL
