The Rocklin Branch Library opened in February 1943 on the lower floor of the City Hall Building. It was open six hours a week. In May 1965, the Library was moved across the road and hours increased to 24 per week. Through the combined efforts of the Friends of the Rocklin Library, the City of Rocklin, and the County of Placer, plus Federal funding through the California State Library, a new 5,264 square-foot branch library was built and dedicated April 28, 1985. This facility was located at 5460 Fifth Street in Johnson-Springview Park. The Friends of the Rocklin Library, the City of Rocklin, and the County of Placer partnered again in 2009/10 to expand the library for the growing city. The new two-story, 16,600-square-foot Rocklin Library opened in January 2011 at its current location, 4890 Granite Drive.