Parking is $10, kids under 3 free, ages 3-9 and 60+ are $16.99 and 10-59 are $21.99. They do have a special, 50% off through 2/28, and $5 off for March 1- April 20. And, they have activity packages as well. If you have a large family, the most economical option may be the Membership. https://www.columbuszoo.org/home/visit/plan-your-visit/Admission
What Yuu NoMi said. You can't get a better answer than that.
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