Iron Hill School No. 112C, also known as the Iron Hill Museum, is a historic one-room school building located near Newark in New Castle County, Delaware. It was designed by noted architect James Oscar Betelle and built in 1923, and is 1 1/2-story, rectangular frame, wood-shingled building on a concrete foundation with a medium-pitched gable roof. The building measures 24 feet by 48 feet, and features a pedimented portico centered on the gable end in the Colonial Revival style. The school was funded by Pierre S. du Pont as part of a reform and rebuilding of African-American schools in Delaware, between 1919 and 1928. The school was used until school segregation was abolished, which occurred at Iron Hill in 1965.