The first books for the library were purchased when the ladies of the "Afternoon Club" sent out postcards asking people in the community to buy a book. The campaign to acquire books was successful. The collection of books was originally housed in the Presbyterian Church, then later the city built a room and gave it to the library.
As the courthouse was being built, a request was granted to house the library in the basement. In 1956, the City Library became the Lamb County Library.
The Lamb County Library moved to the old Higginbotham-Bartlett Lumber Co. building in 1983, and moved into its present location in the former Post Office building in January 2007.