The North Carroll Branch Library serves the residents of Greenmount, an unincorporated community in Carroll County, Maryland. The library opened as a full-service branch in 1990 and provides collections for children, teens, and adults, including print and digital materials. It belongs to the Carroll County Public Library, which has over 400,000 volumes and 4.4 million items in circulation annually and offers access to citizenship resource center, book drop, passport services, meeting rooms, children's learning games, notary, and public fax services.