It would be interesting to go through the new top 100 zoo and aquarium book to see how many of the 80 zoos listed have children's zoos. (I bet
@snowleopard could rattle it off from memory). It would be even more interesting to see if any aquariums have a children's aquarium. The thread discussing the book can be found here:
America's Top 100 Zoos & Aquariums
Determining what constitutes a 'children's zoo' is sometimes a grey area. Establishments such as Disney's Animal Kingdom or Busch Gardens Tampa Bay have sprawling areas that are geared towards kids, but without actual signs declaring 'Children's Zoo' to visitors.
Browsing through my book, here's a list of major American zoos with children's zoos:
Bronx
Brookfield
Central Park
Cincinnati
Cleveland (Australian Adventure is promoted as a pseudo children's zoo)
Dallas
Great Plains
Henry Vilas
Honolulu
Houston
Lincoln Park
Los Angeles
Maryland (Maryland Wilderness is a kid-friendly section)
Minnesota (Wells Fargo Family Farm is spacious but with no exotics)
Oakland
Oklahoma City
Omaha
Philadelphia
Phoenix
Pittsburgh
Point Defiance
Saint Louis
San Antonio
San Diego
San Francisco
Sedgwick County
Toledo
Tulsa
Zoo Atlanta
Zoo Knoxville
Zoo Miami
ZooTampa at Lowry Park
That adds up to 32 out of the 80 zoos in the book with children's zoos.
Top children's zoo's for
zoo nerds:
Oakland - the Wayne and Gladys Valley Children's Zoo is superb, with 3 acres of delights. There is a small yet nicely done Reptile and Amphibian Discovery Room with two dozen species, the House of Bugs building, a massive fruit bat exhibit, lemurs, otters, alligators, tortoises, etc. It's a 'zoo-within-a-zoo'!
Saint Louis - this children's zoo has rarities such as Tasmanian Devils, Short-beaked Echidnas and Matschie's Tree Kangaroos, plus North American River Otters, Fennec Foxes and Naked Mole-rats. Skip it at your peril.
Houston - there is a Bug House here that opened in 2014 and has approximately 25 exhibits, plus North American Porcupines, Swift Foxes and other animals.
Henry Vilas - there are Red Pandas, White-handed Gibbons, Indian Crested Porcupines, Meerkats and Aardvarks in this children's zoo.
San Francisco - there are Red Pandas, Meerkats and an Insect Zoo here.
Lincoln Park - there are Red Wolves and American Black Bears in this children's zoo!
Zoo Knoxville - there is a cool little Nocturnal House here, as well as Beavers.
ZooTampa at Lowry Park - Wallaroo Station is basically the zoo's kid-friendly area, complete with noisy rides. However, a zoo nerd would be foolish to skip it due to the presence of Queensland Koalas and Yelllow-footed Rock Wallabies.