New Castle County, Delaware state by area. It has more people than the other two counties, Kent and Sussex, combined. It is also the most economically developed of the three. Matt Meyer was elected New Castle County Executive in 2016. New Castle County is home to two minor league sports teams: the Wilmington Blue Rocks (baseball) and the Delaware Blue Coats (basketball) which also plays in Wilmington. It also has a professional auto racing track in New Castle known as Airport Speedway, which races on Saturday nights throughout the summer. The first permanent European settlement on Delaware soil was Fort Christina, resulting from Peter
National Register of Historic Places listings in southern New Castle County, 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 Castle County, Delaware. It is intended to be a complete list of the properties and districts on National Register of Historic Places in New Castle County, Delaware south of the Chesapeake and Delaware Canal. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map. There are 389 properties and districts listed on the National Register in the county. Eighty-six