If you don't mind to walk a little you can park on Stockton right off Fullerton and Lakeshore. There is ALOT of free parking in the area. But then again parking at the zoo does go back to help the zoo keep up with maintenance.
There is also free parking around the side of the road if you lucky enough to get a spot , but there is a lot that you can park hourly
2.50 for an hr
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