The Quaker Hill Historic District is a national historic district located at Wilmington, New Castle County, Delaware. It encompasses 151 contributing buildings in a residential neighborhood west of the central business district of Wilmington. The district includes 19th-century residential structures of all classes, along with several 19th-and 20th-century commercial structures. The predominant structures are three-story rowhouse dwellings in a variety of popular styles including Second Empire, Italianate, and Gothic Revival. Notable non-residential buildings include the Quaker Meetinghouse and Cemetery, St. Peter's Cathedral and Rectory (1816), Union Methodist Church, and New Mount Bethel Baptist Church