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,
New Castle County, Delaware to Lower Alloways Creek Township, New Jersey. New Castle County, like all of Delaware's counties, is subdivided into hundreds. New Castle County is apportioned into ten hundreds: Brandywine, Christiana, Wilmington (the city of Wilmington, which, by law, is a hundred in itself), Mill Creek, White Clay Creek, Pencader, New Castle, Red Lion, St. Georges and Appoquinimink. The highest natural point in Delaware, Ebright Azimuth at 451 feet (137 m), is located in New Castle County. The Chesapeake and Delaware Canal was built through New Castle County, and adjoining Cecil County, Maryland, between 1822 and 1829. As of the census of