In 1961 the Garden City Library was started as a service project of the Zeta Chapter of Beta Sigma Phi sorority. Sorority members and Garden City citizens who participated in this project were led by sisters Dore Moon (Stansbury), and Marjorie Ruth Moon. Pastor Thomas Blackburn served as liaison between sorority and community, with Garden City Councilman Harold Conn as an advisor. Mrs. Robert Roundtree of Beta Sigma Phi was board chairman and Mrs. Signa Higgins (Treat) co-chairman, Dora Moon was project chairman.
In 1962 the Library officially opened and was called Ada County Community Library No. 2. It was located in a small building behind the Christian Community Center. The Library had a staff of volunteers and the books that made up the collection had all been donated. The Library also utilized a traveling collection from the Idaho State Library.
On December 24, 1976, the City of Garden City received a grant from E.D.A to construct a city complex which included a library. On February 3, 1977, the Garden City Community Library Board of Trustees met and drew up a petition asking the Garden City Council to consider accepting the responsibility and administration of the Garden City Community Library. March 8, 1977, the Garden City Council voted to accept the petition and appointed Mrs. Glenn S. Cole as the librarian.
May 10, 1977, the Garden City Council appointed the following new library board of directors; Mrs. Harvey Miller, Mrs. Gordon Howell, Miss Carol Ann Hansen, Mrs. Gladys Shelton and Mrs. Robert Cannon. Mrs. Anita Wall, a Garden City councilmember was appointed as ex-officio member of the library board.
In 1978, with grants and financing from the City of Garden City, the Library was moved into Garden City Hall which was located on East 50th Street.
April 15, 2002, the Garden City Library was re-located to 9115 Chinden Street #104 as a temporary location until the new Garden City Hall was built. May 9, 2005, the Garden City Library opened its permanent location at 6015 Glenwood Street. In 2012 the Garden City Library will be celebrating its 50th year.