New Castle County, Delaware New Castle County Police and Emergency Medical Services Division Headquarters and the emergency communications center supporting 911 services. The present building opened in 2007 with a construction cost of . The Headquarters occupied a former elementary school building on the same site prior to erection of the current building. New Castle is a Democratic-leaning county. Because its population is almost double the combined population of Kent and Sussex, the winner in New Castle County has also won Delaware overall in each of the last seventeen presidential elections. In 1992, 2000, 2004 and 2016, the Republican candidate carried Kent and Sussex,
National Register of Historic Places listings in southern New Castle County, Delaware are located south of the Chesapeake and Delaware Canal and are listed here, including one site further designated as a National Historic Landmark. There are 84 sites in Wilmington, which are listed at National Register of Historic Places listings in Wilmington, Delaware. There are 220 sites in northern New Castle County outside Wilmington, which are listed at National Register of Historic Places listings in northern New Castle County, Delaware. Contents: Divisions in Delaware National Register of Historic Places listings in southern New Castle County, Delaware This is a list of the National Register of Historic Places listings in southern New