Travelers are voting Woodland Park Zoo as the best zoo in Seattle. There are 2 zoos in St. Helens a city just 123 km from Seattle and 2 zoos in Troutdale which is 142 km distant. The most popular of these are Oregon Zoo in St. Helens and Washington Park in Troutdale. You can find 2 zoos in Washington and 93 zoos in the country of United States. Our members favorite in Washington is Woodland Park Zoo and Jacksonville Zoo & Gardens is the top pick in United States. Want more? Check out our map of zoos in Seattle.