About the Duvall LibraryWelcome to Duvall Library, a branch of the King County Library System. Located in northeast King County, Washington, the library serves the informational and recreational needs of the surrounding community. We invite you to visit Duvall in person or explore from home with your computer. KCLS has a collection of more than three million items available to library users. Materials may be placed on hold and picked up at any community library.
Last Updated: January 3, 2013