New Castle County is the northernmost of the three counties of the U.S. state of Delaware. As of the 2020 census, the population was 570,719, making it the most populous county in Delaware, with nearly 60% of the state's population of 989,948. The county seat is Wilmington, which is also the state's most populous city. New Castle County is included in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD Metropolitan Statistical Area. The county is named after William Cavendish, 1st duke of Newcastle. New Castle County has the highest population and population density of any Delaware county, and it is the smallest county in the 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.
Claymont is a census-designated place (CDP) in New Castle County, Delaware, United States. As of the 2020 U.S. census, the population of Claymont was 9,895.
Interstate 495 (I-495) is an 11.47-mile-long (18.46 km) auxiliary Interstate Highway in the US state of Delaware. The highway, named the Vietnam Veterans Memorial Highway, serves as a six-lane bypass of I-95 around the city of Wilmington. I-495 begins at an interchange with I-95 and I-295 near Newport to the southwest of Wilmington. From here, the road heads east to the Port of Wilmington, where it turns northeast and crosses the Christina River as it heads to the east of downtown Wilmington. Upon reaching Edgemoor, I-495 runs between the Delaware River to the east and U.S. Route 13 (US 13) to the west, continuing to Claymont. In Claymont, I-495 turns north and merges into northbound I-95 at an interchange with Delaware Route 92 (DE 92) just south of the Pennsylvania state line.
The Ebright Azimuth is the point with the highest benchmark monument elevation in the U.S. state of Delaware. It is marked with a geodetic benchmark monument and has an elevation of 447.85 feet (136.50 m) above sea level. The only state high-point with a lower elevation is Britton Hill in the state of Florida at 345 feet (105 m) above sea level.
Christiana Hundred is an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference.
Mill Creek Hundred is an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference.
Pencader Hundred is an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference. It is named after Pencader, Carmarthenshire, Wales.
New Castle Hundred is an unincorporated subdivision of New Castle County, Delaware, United States. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference.
Wilmington Hundred is an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference.
White Clay Creek Hundred is an unincorporated subdivision of New Castle County, Delaware. Hundreds were once used as a basis for representation in the Delaware General Assembly, and while their names still appear on all real estate transactions, they presently have no meaningful use or purpose except as a geographical point of reference.
Interstate 95 (I-95) is an Interstate Highway running along the East Coast of the United States from Miami, Florida, north to the Canadian border in Houlton, Maine. In the state of Delaware, the route runs for 23.43 miles (37.71 km) across the Wilmington area in northern New Castle County from the Maryland state line near Newark northeast to the Pennsylvania state line in Claymont. I-95 is the only primary Interstate Highway that enters Delaware, although it also has two auxiliary routes within the state. Between the Maryland state line and Newport, I-95 follows the Delaware Turnpike, a toll road with a mainline toll plaza near the state line. Near Newport, the Interstate has a large interchange with Delaware Route 141 (DE 141) and the southern termini of I-295 and I-495. I-95 becomes the Wilmington Expressway from here to the Pennsylvania state line and heads north through Wilmington concurrently with U.S. Route 202 (US 202). Past Wilmington, I-95 continues northeast to Claymont, where I-495 rejoins the route right before the Pennsylvania state line.
Delaware Route 92 (DE 92) is a 8.83-mile-long (14.21 km) road in northern New Castle County, Delaware, that runs a short distance to the south of the Pennsylvania/Delaware state line for most of its length. The route runs from DE 100 near Montchanin east to U.S. Route 13 (US 13) in Claymont. The road is a two-lane rural road between the western terminus and US 202, passing through Brandywine Creek State Park and the Brandywine Valley section of First State National Historical Park. East of US 202, DE 92 is a four-lane divided highway called Naamans Road that passes through suburban areas to the north of Wilmington, with an interchange at Interstate 95 (I-95) in Claymont. DE 92 was first built as a state highway east of US 202 during the 1920s and 1930s. By 1968, the route was designated onto its current alignment. In the 1990s, DE 92 east of US 202 was widened into a divided highway.
Delaware Route 3 (DE 3) is a state highway northeast of the city of Wilmington in New Castle County, Delaware. The route runs from Lighthouse Road/Hay Road just south of Interstate 495 (I-495) in Edgemoor north to DE 92 in Hanbys Corner. The route passes through the suburban areas of Brandywine Hundred, Bellefonte, and Arden. It intersects I-495 and U.S. Route 13 (US 13) in Edgemoor, US 13 Business in Bellefonte, and I-95 near Bellevue State Park. DE 3 was built as a state highway during the 1920s and 1930s. By 1968, the route was designated between US 13 north to DE 92 on Marsh Road. The route was moved to its current alignment and terminus by 1984.
U.S. Route 13 Business is an 8.19-mile (13.18 km) business route of US 13 that runs through the heart of the city of Wilmington in New Castle County, Delaware, where US 13 bypasses downtown Wilmington to the east, running near Interstate 495 (I-495) and the Delaware River. US 13 Bus. begins at I-495 and US 13 at the southern border of Wilmington and heads north toward the downtown area, where it splits into a one-way pair. Past downtown, the business route heads through the northeastern part of the city on North Market Street before continuing through suburban Brandywine Hundred on Philadelphia Pike. US 13 Bus. reaches its northern terminus at US 13 in Claymont. US 13 Bus. is a four-lane road for much of its length.
U.S. Route 13 (US 13) is a U.S. highway running from Fayetteville, North Carolina, north to Morrisville, Pennsylvania. In the U.S. state of Delaware, the route runs for 103.33 mi (166.29 km). It traverses the entire north–south length of the state from the Maryland state line in Delmar, Sussex County, north to the Pennsylvania state line in Claymont, New Castle County. US 13 connects many important cities and towns in Delaware, including Seaford, Dover, and Wilmington. The entire length of US 13 in Delaware is a multilane divided highway with the exceptions of the segment through Wilmington and parts of the route in Claymont. Between the Maryland state line and Dover, US 13 serves as one of the main north–south routes across the Delmarva Peninsula. From Dover north to Tybouts Corner, the route is followed by the controlled-access Delaware Route 1 (DE 1) toll road, which crosses the route multiple times and has multiple interchanges with it. US 13 bypasses downtown Wilmington to the east before it heads northeast of the city parallel to Interstate 495 (I-495) and the Delaware River to Claymont. US 13 is the longest numbered highway in the state of Delaware.
Talleyville is an unincorporated community in New Castle County, Delaware, United States.
U.S. Route 202 (US 202) is a US Highway running from New Castle, Delaware, northeast to Bangor, Maine. The southernmost section of the route in the U.S. state of Delaware passes through northern New Castle County. It runs from its southern terminus at an interchange with US 13/US 40 near the Wilmington Airport north to the Pennsylvania state line in Brandywine Hundred. The route passes east of the airport concurrent with Delaware Route 141 (DE 141) before coming to an interchange with Interstate 95 (I-95). At this point, US 202 heads northeast along with I-95 through Wilmington. Just north of Wilmington, US 202 splits from I-95 by running north on Concord Pike through the suburban Brandywine Hundred area to the Pennsylvania state line. US 202 is a multilane divided highway the entire length across Delaware, with the section concurrent with I-95 a freeway.
John Grubb (1652–1708) was a two-term member of the Pennsylvania Provincial Assembly and was one of the original settlers in a portion of Brandywine Hundred that became Claymont, Delaware. He founded a large tannery that continued in operation for over 100 years at what became known as Grubb's Landing. He was also one of the 150 signers of the Concessions and Agreements for Province of West Jersey.
Overlook Colony is an unincorporated community in Claymont, New Castle County, Delaware, United States.
Shellpot Creek is a tributary of the Delaware River in northeast New Castle County, Delaware. The stream rises between Grubb Road and Shipley Road, south of Naaman's Road at 39°49′19″N75°31′55″W in Brandywine Hundred and flows southeast for about six miles before discharging into the Delaware River at 39°44′05″N75°30′16″W near Edgemoor. Prior to 1938, the stream drained into the Brandywine Creek, but was subsequently redirected to the Delaware River.
