The Timberland Regional Library serves more than 500,000 residents in the city of Tumwater in Thurston County. Each year, the library maintains over 1.1 million volumes and circulates over 4.3 million items. In addition to its 27 community libraries, the regional library has two cooperative library centers and 5 kiosks in Grays Harbor, Lewis, Mason, Pacific, and Thurston Counties where residents can access its collections.