Two communities in Sheboygan County received grants from Andrew Carnegie for public library buildings. Unlike the City of Sheboygan, the City of Plymouth chose to preserve and incorporate its Carnegie building into a new expanded
Plymouth Public Library. The Carnegie building is preserved in its entirety with a major 1988 addition at the rear of the building. The City of Plymouth received its $10,000 Carnegie grant in 1908, but the building was not completed until 1915. The addition was added to the building in 1988. The main entrance to the expanded building is located at 130 Division Street but the Carnegie building faces E. North Main Street. The Wisconsin Historical Society has determined that the building is eligible to be added to the National Register of Historic Places. There is a Wisconsin Architecture and History Inventory (AHI) record for the building. Search under Sheboygan County for Plymouth Public Library. The building is listed on the Wisconsin Library Heritage Trail.