The Spokane River and the Little Spokane River converge at Nine Mile Falls to help create Long Lake. There is still some dispute as to whether the lake's name should be Long Lake or Lake Spokane, but residents of Nine Mile Falls stand by the Long Lake name.
Nine Mile Falls is also the site of the historic Spokane House trading post, established in 1810. Spokane House was one of the first white settlements in the area.
The west head of the Spokane River Centennial Trail is at Sontag Park in Nine Mile Falls.
Nine Miles Falls was the location of the book, The Fortunes of Indigo Skye, although the author placed it in the wrong part of Washington.
The community offers four schools: two elementries, one middle school and a high school.