This historic courthouse witnessed Delaware's audacious declaration of independence, not just from Great Britain, but from another powerful colonial entity.
SteamFan / cc by 2.5, via Wikimedia CommonsNew Castle
Self-guided audio walking tour of New Castle — GPS route, offline playback, story-driven narration in 32 languages.
“A town where brick paths and ancient walls echo with declarations, the rustle of Quaker plainness, and the grand ambitions of Dutch governors.”
New Castle, as no one tells it.
Not the postcards. The stories even locals don't know — whispered in your ear, right where they happened.
The town's central green, a peaceful expanse today, once served a grimmer purpose during its early years.
A legend persists that a prominent historical figure, instrumental in the founding of a major colony, spent his first American night in this very house.
Discover every secret of New Castle
Every address, every reveal in full — in your ear, right where it happened.
You pick your stops. You walk. The voice reveals what the others miss.

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Your self-guided audio tour of New Castle is ready — pick your landmarks, choose your language, and start the moment you arrive.
BuyThe story of New Castle
New Castle, Delaware, is a town where history isn't just preserved; it's a living, breathing part of the everyday. Founded by Peter Stuyvesant for the Dutch in 1651 as Fort Casimir, this riverside community has seen the flags of the Netherlands, Sweden, and Great Britain fly over its strategic location. Stroll along its brick sidewalks and cobbled thoroughfares, and you'll quickly understand why it's been recognized as a National Landmark Historic Area, often compared to Williamsburg, Virginia, for the authenticity and number of its historic structures.
Unlike many historic towns that exist as curated exhibits, New Castle remains a residential community where people live and work in homes that have stood for centuries. From its colonial origins to its pivotal role in the American Revolution, New Castle offers a tangible connection to the past, inviting visitors to uncover the layers of its diverse heritage. It's a place where every corner holds a story, and the echoes of early American life are still remarkably clear.
## A Contested Beginning and Colonial Capital New Castle's story begins in 1651 when Dutch West India Company Director-General Peter Stuyvesant established Fort Casimir to assert Dutch control over the Delaware River. This strategic location, originally a former indigenous village called "Tomakonck" (Place of the Beaver), was constantly contested. The Swedes captured it in 1654, renaming it Fort Trinity, only for the Dutch to reclaim it the following year and establish the town of New Amstel. English forces seized the entire New Netherland colony in 1664, renaming the town 'New Castle' and making it the capital of their Delaware Colony. Though briefly regained by the Dutch in 1673, it was permanently returned to Great Britain in 1674.
## William Penn's Landing and Delaware's Independence In 1682, William Penn, the Quaker founder of Pennsylvania, first set foot on American soil in New Castle. While New Castle became part of Penn's vast land grant, the settlers in the 'Lower Three Counties on Delaware' grew dissatisfied with his Quaker rule. In 1704, Penn granted them their own assembly, making New Castle the colonial capital of Delaware. This separation culminated on June 15, 1776, when the assembly in the New Castle Court House declared independence not only from Great Britain but also from Pennsylvania, forming the Delaware State. The capital briefly remained in New Castle before moving to Dover in 1777 due to its vulnerability to British attack.
## A Transportation Hub and Enduring Legacy Throughout the 18th and early 19th centuries, New Castle thrived as a vital transportation hub. Its harbor on the Delaware River was a crucial stop for mercantile and passenger ships, and it lay on the stagecoach route connecting Philadelphia to Baltimore and Washington. In 1831, the New Castle and Frenchtown Railroad, one of the nation's first, further solidified its role. However, the rise of other rail lines bypassing the town eventually led to a decline in its prominence, and the county seat moved to Wilmington in 1881. Despite these changes, New Castle's commitment to historical preservation has ensured that its colonial and Federal-era architecture, cobbled thoroughfares, and enduring stories remain, making it a unique window into early American history.
Begin your exploration at the New Castle Court House Museum, one of the oldest surviving courthouses in the United States, where Delaware declared its independence. Next door, the Arsenal, now the Visitor Center, offers maps and an orientation film. Wander across The Green, the town's historic common, surrounded by significant buildings. Don't miss the Amstel House, a Georgian-style mansion built around 1738, and the Dutch House, one of Delaware's oldest houses, both operated as museums by the New Castle Historical Society. The Read House & Gardens, a grand Federal-period estate, offers a glimpse into the life of a prominent Delaware family.
For outdoor enjoyment, stroll along The Strand, New Castle's historic residential street, offering views of the Delaware River. Battery Park provides green space for picnics and riverfront walks, and is the site of many community events. You can also connect to the Jack A. Markell Trail (JAM Trail), a multi-use path linking New Castle to Wilmington. For a unique perspective, consider a boat trip to Fort Delaware on Pea Patch Island, a mid-19th-century harbor defense and Civil War prisoner base.
The best times to visit New Castle for comfortable weather and outdoor activities are from late spring through early fall, specifically May to October. During these months, temperatures are pleasant, and the town comes alive with events. September is particularly clear and comfortable. The annual 'Separation Day' celebration, commemorating Delaware's independence, is held in mid-June and features parades and fireworks.
New Castle is located about six miles south of Wilmington, easily accessible via DE-9, I-95, and I-295. While many historic roads have uneven bricks and cobbled surfaces, the town is walkable. Public transportation is available via DART bus routes, with stops near the historic district. Parking is available, and on special event days, satellite parking is often provided. The New Castle Visitor Center at the Arsenal (30 Market St.) is a great starting point for maps, self-guided tours, and museum tickets. Many museums have varying hours, so it's advisable to check their websites or call ahead.
- What is New Castle, Delaware, known for?
- New Castle is known for its exceptionally well-preserved colonial and Federal-era architecture, its pivotal role as Delaware's colonial and first state capital, and its deep history spanning Dutch, Swedish, and English rule.
- Is New Castle, Delaware, walkable?
- Yes, Historic New Castle is very walkable, with many of its key sites, shops, and restaurants within a compact area. Be aware that some historic roads feature uneven bricks and cobbled surfaces.
- What is Separation Day in New Castle?
- Separation Day, celebrated annually in mid-June, commemorates June 15, 1776, when Delaware's assembly in New Castle declared independence from both Pennsylvania and Great Britain, forming the Delaware State.
- Are there museums to visit in New Castle?
- Yes, New Castle has several notable museums, including the New Castle Court House Museum, the Amstel House, the Dutch House, and the Read House & Gardens.
- Where did William Penn first land in America?
- William Penn first set foot on American soil in New Castle, Delaware, on October 27, 1682.
- What kind of events happen in New Castle?
- New Castle hosts various events throughout the year, including the annual Separation Day celebration, summer concert series, antiques shows, and community gatherings in Battery Park.