New Castle Range Front Light

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

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.

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.

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.

The Bellanca Airfield Museum is an aviation museum located in New Castle, Delaware focused on the history of Bellanca Airfield.

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.

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.

Delaware Valley Classical School is a private, K-12 classical Christian school located in New Castle, Delaware. For the 2023–24 academic year, enrollment was approximately 190 students, with approximately 30 faculty and staff.

Stonum, also called Stoneham, is a historic house at 900 Washington Avenue in New Castle, Delaware. Its main section built about 1750, it was the country home of George Read (1733-1798), a signer of the Declaration of Independence. His advocacy enabled Delaware to become the first state ratifying the declaration. The house was declared a National Historic Landmark in 1973. It is the only building standing associated with this Founding Father.

William Penn High School, also known as William Penn or simply Penn, is a four-year comprehensive, coeducational public high school located in unincorporated New Castle County, Delaware, United States. It is adjacent to the New Castle city limits and has a New Castle postal address. The school is a member of the Colonial School District, and is the largest high school in the state of Delaware. The school mascot is the Colonial. In addition to New Castle the school district includes Delaware City, Port Penn, St. Georges, Wilmington Manor, portions of Wilmington, and half of Bear.

State Road is an unincorporated area in New Castle County, Delaware, United States. State Road is located at the intersection of U.S. Route 13 and U.S. Route 40, southwest of New Castle.For many years, State Road was the location of a major rest stop on the intercity bus network known as Clemente's Rest, which served buses traveling between the Northeastern United States, the Southern United States, and points on the Delmarva Peninsula. The rest stop billed itself as "the Place Where The Nation Meets and Eats". It had opened in 1951 and closed in 1992, as Greyhound began moving its operations to its Wilmington agency. The area earlier had a stop on the New York, Philadelphia and Norfolk Railroad.

Lesley-Travers Mansion, also known as the Deemer House, Travers House, and Lesley House, is a historic home located at New Castle, New Castle County, Delaware. It was designed by noted Baltimore architects Thomas and James Dixon and built in 1855. It has a two-story, five-bay, brick core with several appendages and wings. It has a castle-like appearance, with a slate-covered steeply pitched gable roof and five-story tower, and is in the Gothic Revival style.It was added to the National Register of Historic Places in 1973.