State Road, Delaware

The Grantham-Edwards-McComb House is a historic house at 217 Park Avenue in New Castle, Delaware. It is a 2+1⁄2-story Federal style brick building with a side gable roof, end chimneys, and a five bay facade. It was built between 1804 and 1817 by Isaac Grantham, and was probably used as a tenant farm in its early years. After the American Civil War it was acquired by Henry S. McComb, a Civil War veteran who later was a cofounder of the Union Pacific Railroad.The house was added to the National Register of Historic Places in 2016.

Pleasantville is an unincorporated community in New Castle County, Delaware, United States. Pleasantville is located on Delaware Route 273, west of New Castle.

Hares Corner is an unincorporated community in New Castle County, Delaware, United States. Hares Corner is located at the intersection of U.S. Route 13/U.S. Route 40 and Delaware Route 273, west of New Castle and immediately south of Wilmington Airport.

Buena Vista is a historic home located at New Castle, New Castle County, Delaware. It was built between 1845 and 1847, and is a two-story, five-bay, brick dwelling in the Greek Revival style. It has a service wing and a long wing designed by architect R. Brognard Okie containing a long hall and library. It features a full width verandah supported by Doric order columns. It was the home of U.S. Senator and Secretary of State John M. Clayton (1796-1856) and U.S. Senator and Delaware Governor C. Douglass Buck (1890-1965), who donated it to the State of Delaware. It is operated as the Buena Vista Conference Center by the State of Delaware. The estate originally was named in commemoration of the Battle of Buena Vista in the Mexican–American War. It was added to the National Register of Historic Places in 1971.

The New Castle Range Rear Light is a lighthouse in Delaware, United States, on the Delaware River near New Castle, Delaware.

New Castle Range Front Lighthouse is a lighthouse in Delaware, United States, on the Delaware River near New Castle, Delaware

Wilmington Airport (IATA: ILG, ICAO: KILG) (formerly known as New Castle Airport, New Castle County Airport, sometimes referred to as Wilmington-New Castle Airport, or to a lesser extent Wilmington/Philadelphia Regional Airport and Greater Wilmington Airport) is an airport located in unincorporated New Castle County, Delaware, near Wilmington, Delaware. Owned by New Castle County and operated under a lease agreement with the Delaware River and Bay Authority, it is five miles (8 km) south of Wilmington and about 30 miles (50 km) from Philadelphia. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.Federal Aviation Administration records say the airport had 642 passenger boardings (enplanements) in calendar year 2011 and 1,064 passenger boardings in 2012. Thanks to the inauguration of service by Frontier Airlines, 2013 enplanements increased to 52,456, though Frontier ceased its Delaware service in 2015. Frontier resumed service to Wilmington in February 2021 but discontinued service again in June 2022. Avelo Airlines has since started service to Wilmington in February 2023.

Penn Farm of the Trustees of the New Castle Common also known as Penn Farm and Farm No. 7, is a historic farm complex located near New Castle, New Castle County, Delaware. The complex includes a farmhouse, bank barn, granary, milk house, carriage shed, tenant shack, garage, chicken house, and vegetable stand. The farmhouse was built about 1804, and consists of a two-story, three-bay brick section; a two-story, four-bay frame section; and a one-story frame shed.It was added to the National Register of Historic Places in 1997.The Penn Farm Trail is a part of the East Coast Greenway.

John Lewden House is a historic home located at Christiana, New Castle County, Delaware. It was built about 1770, and is a two-story, five bay, single pile, brick dwelling in the Georgian style. It has a center hall plan and the interior features original woodwork in the parlor and hall. Also on the property is a contributing two-story brick carriage shed (c. 1800).It was listed on the National Register of Historic Places in 1979.

Army Creek is a 4-mile (6.4 km) long river in northern Delaware in the United States that drains about 10 square miles (26 km2). The stream is controlled by a floodgate just downstream of DE 9 that does not allow tidal influence of the stream.The source of Army Creek is near the eastern edge of Bear, Delaware in the south and New Castle County Airport in the north. The water then flows ENE to the Delaware River about 1 mile (1.6 km) SW of New Castle, Delaware, at Dobbinsville. Most of the watershed is urban/residential. The watershed is the scene of two Superfund sites owing to the urban/industrial history.

Tybouts Corner is an unincorporated populated place in New Castle County, Delaware, United States.

The Bellanca Airfield was an airfield, aircraft plant, and service hangar built in 1928 by Giuseppe Bellanca and Henry B. DuPont in New Castle, Delaware. Located off Route 273 near the Delaware River, the plant produced approximately 3000 aircraft before closing in 1954. The only surviving part of the airfield is the former Air Service, Inc. hangar, which was listed on the National Register of Historic Places in 2005.