Riverside State Park is a publicly owned recreation area located 9 miles (14 km) northwest of Spokane in Nine Mile Falls, Washington. It is the largest state park in Washington, covering some 14,000 acres (5,700 ha) along the Spokane and Little Spokane rivers. The park is managed by the Washington State Parks and Recreation Commission.[from wikipedia]

There were 2,110 households out of which 43.6% had children under the age of 18 living with them, 67.4% were married couples living together, 10.0% had a female householder with no husband present, and 17.4% were non-families. 13.5% of all households were made up of individuals and 3.0% had someone living alone who was 65 years of age or older. The average household size was 2.99 and the average family size was 3.27.[from wikipedia]