The Mosinee Branch Library serves about 4,498 residents in the City of Mosinee and is a Marathon County Public Library member. The library system maintains 250,252 volumes and circulates approximately 1.1 million items per year. In addition to traditional library resources, the Mosinee Branch provides programs for children and adults, including storytimes, books clubs, pokeman clubs, arts & crafts, movie nights, author visits, workshops, and wellness activities.