In 1965, the Carroll County Commissioners gave the town of Mt. Airy permission to open a community library, with the provision that the town raise $3,000 to refurbish and furnish a room above the town office. Four months later, after donations and fund-raising events such as a benefit shoot at the Rod and Gun Club, a dance for teens, and a book sale, the library opened. In 1974 the Mt. Airy Community Branch moved to the former American Grocery Building, and in 1993 a new full-service Mount Airy Branch opened on Ridge Avenue.
Renovations to the Mt. Airy Branch were completed in 2014 and included repavement of the driveway, reworking of the sidewalks to improve grade and accessibility, roofing replacement, renovation of the interior to improve lighting throughout, a new customer service desk, improved seating areas for customers, and the addition of several collabortive workspaces.