The Yuma County Library District serves the population of Yuma County, Arizona. Today the library district consists of the nearly 80,000 square foot Main Library located in Yuma as well as branches in downtown Yuma, the Foothills, Somerton, San Luis, Wellton, Dateland, and Roll. The first Yuma Library, a Carnegie library, opened February 24, 1921 with 1,053 volumes and seating for 20 persons.