The Sunsites Community Library was initially organized by local volunteers in the early 1970s. It operated out of the former Sunsites Community Center at first and later moved to the Arts & Crafts building. Cochise County Library District began providing books, Interlibrary Loan service, and other assistance around 1975, and this assistance was formalized in 1980, when the Sunsites Community Library became a branch of the county system.
In 1979, library supporters organized the Friends of the Pearce/Sunsites Library to raise funds for a new library. The Friends were very successful in their mission, and raised $30,000 with book sales, raffles, balloon races, wine tastings, and other events. Horizon Corporation donated the land, and in April 1983 the Friends broke ground for their new rammed earth library. Much of the labor was provided by community members. A federal grant, written by Cochise County Library District, purchased furniture, shelving, and a children's collection. The Grand Opening was on May 13, 1984. The Friends have been maintaining the building ever since and also buying books and sponsoring cultural programs.
Sunsites Community Library continues as a branch of the Cochise County Library District, which pays the salary of the Branch Manager, and provides a variety of services, including books, supplies, furniture, computer equipment, courier, and Interlibrary loan. The Library District also provides training and support for the many dedicated community volunteers who staff the desk and do the behind-the-scenes work at the library.