Travelers are voting Houston Zoo as the best zoo in Houston. There is 1 zoo in San Antonio a city just 191 km from Houston. The most popular of these is San Antonio Zoo And Aquarium in San Antonio. You can find 4 zoos in Texas and 98 zoos in the country of United States. Our members favorite in Texas is Houston Zoo and Jacksonville Zoo & Gardens is the top pick in United States. Want more? Check out our map of zoos in Houston.