The Bay County Library System serves 107,680 residents of Bay City. The library system includes Alice and Jack Wirt Public Library, Auburn Area Branch Library, Pinconning Branch Library, Historical Sage Branch Library, and a Bookmobile. The library maintains a collection of 309,748 volumes and circulates 835,739 items annually, including print and digital collections. It provides meeting rooms, computers, wireless printing, and copying across all branch locations, and public notary services at Alice & Jack Wirt and Sage branches. Events such as STEM activities, author visits, crafts, and storytimes are also available at the library.