Travelers are voting SplashTown Waterpark as the best amusement park in Harris County. There are 1 amusement park in Decker Prairie a city just 32 km from Harris County and 1 amusement park in Austin which is 154 km distant. The most popular of these are SplashTown Waterpark in Decker Prairie and Zilker Park in Austin. You can find 15 amusement parks in Texas and 217 amusement parks in the country of United States. Our members favorite in Texas is SplashTown Waterpark and Cedar Point is the top pick in United States. Want more? Check out our map of amusement parks in Harris County.