Zealand
Zealand sits at the heart of Denmark, a single island holding roughly 40% of the entire country's population. On the 1st of January 2020, more than 2.3 million people lived on its 7,031 square kilometres. The capital, Copenhagen, rises along its eastern shore, and the island's connections stretch outward across the water to Sweden in the east, to Funen and Jutland in the west, and to the smaller islands of Falster and Lolland in the south. What is this place, exactly? How did a stretch of land not quite the size of some American counties come to carry the weight of a nation's identity? And why does a Norse goddess, a medieval civil code, and a Danish railway company all trace their stories back to the same island? Those are the threads this documentary will follow.
The Danish name for the island, Sjælland, has no certain etymology, which is remarkable for a place so central to Danish life. In modern Danish, the word Sjæl means "soul", but linguists do not trace the island's name to that meaning. A more plausible root points to the Old Norse siô or sæ, simply meaning "lake" or "sea". A competing hypothesis, which holds favour today, suggests the Old Danish form Siâland derived from a reconstructed word, *selha-, which may have meant either "seal" or "deep bay, fjord", combined with an ending meaning "indicates, resembles".
Roskilde, one of the oldest settlements on the island, sits at the head of the Roskilde Fjord, a narrow arm of the Isefjord accessible only by sea. Some scholars believe early sailors named the whole island after that sheltered inlet. The English form "Zealand" may have arrived via the German Seeland, a name that associates the island with the sea, or it may reflect an older Danish variant, Sælland, which remained in common use until the 19th century. The Swedish form, Själland, is simply an adaptation to Swedish spelling conventions.
The island of New Zealand shares none of this etymology. New Zealand takes its name from Zeeland, a Dutch province, not the Danish island. A historical thread does connect the two places, however: in the 19th century, Scandinavian migrants, many of them Danish, settled on New Zealand's North Island, particularly in the districts of the southern Hawkes Bay and the northern Wairarapa.
Norse mythology offers its own account of how Zealand came to exist, and it involves a goddess committing elaborate, geological fraud. In the Gylfaginning, Gefjun tricks Gylfi, the king of Sweden, into letting her plough up a piece of his land. She transforms her sons into oxen and hauls the torn territory westward across the water to Denmark. That displaced chunk of earth, according to the myth, became Zealand. The void left behind flooded and became the Swedish lake Mälaren.
Modern maps add an intriguing wrinkle. The shape of Zealand bears a closer resemblance to the Swedish lake Vänern than it does to Mälaren, which has led some to identify Vänern as the actual "hole" the myth describes. Gefjun herself is described in the sources as queen of King Skjöldr, who is named as the eponymous ancestor of the Scyldings, a royal lineage that links Zealand's mythological founding to the genealogies underlying much of Old Norse and Old English heroic tradition.
Valdemar's Zealandic Law, enacted in the 13th century, was one of three regional codes that brought the first uniform legal framework to Denmark. Before that code, and its counterparts covering Jutland and Scania, law varied from settlement to settlement across the country. Ringsted served as the earliest political and religious centre on the island, a role that passed to Roskilde before Copenhagen assumed it entirely. Sorø Abbey at Sorø and Esrom Abbey at Esrum stood as major religious centres before the Reformation reshaped the Danish church.
Helsingør's rise came from geography. The town controlled the entrance to the Øresund, the narrow strait between Denmark and Sweden. The construction of Kronborg Castle and the introduction of Sound Dues, the tolls levied on ships passing through, turned Helsingør into the most important town and seaport on the island outside Copenhagen. North Zealand, for centuries starting in the late 16th century, was crown property, functioning as a royal hunting domain rather than productive farmland.
Early manufacturing spread along the island well before the industrial age. The millstream called Mølleåen drove watermills that served as early industrial sites. The Kronborg Arms Factory operated at Hellebæk. Johan Frederik Classen built Frederick's Works at Frederiksværk. Niels Ryberg established the Køng Textile Factory at Vordingborg. The railway arrived in 1847, when Det Sjællandske Jernbaneselskab opened the first section of track between Copenhagen and Roskilde, laying the foundation for the island's modern transport network.
Zealand is almost surrounded by water yet connects to most of Northern Europe by fixed links. The Great Belt Fixed Link joins it to Sprogø and then to Funen, giving road and rail passengers a passage to Jutland and mainland Denmark without touching a ferry. To the east, Copenhagen sits partly on the island of Amager, and Amager is joined to the Swedish region of Scania by the Øresund Bridge, which crosses via the artificial island of Peberholm. That single chain of structures makes Zealand part of a continuous land corridor from Scandinavia into Europe.
In the south, the Storstrøm Bridge and the Farø Bridges reach across to Falster, and from Falster the links continue on to Lolland. The Fehmarnbelt Tunnel, which was under construction at the time the source was written, would extend that corridor further, connecting Lolland to the German island of Fehmarn, which is itself tied to mainland Europe. When complete, the tunnel would make it possible to travel by road and rail from Zealand all the way to continental Europe without a single ferry crossing.
On the 5th of June 2007, the regional broadcaster DR reported that Kobanke, near the town of Rønnede in Faxe Municipality, reached 122.9 metres and was the highest natural point on the island. A competing landmark, Gyldenløveshøj south of Roskilde, stands at 126 metres, but that elevation relies on a man-made hill constructed in the 17th century; its natural peak is only 121.3 metres.
Copenhagen dominates Zealand's urban landscape. In 2020 the city held between 1.3 and 1.4 million people, making it by far the largest urban centre not just on the island but in all of Denmark. It is governed partly under the Capital Region, which also encompasses North Zealand, while the more rural bulk of the island falls under the Zealand Region.
Roskilde, the island's second city by population among urban areas with more than 10,000 inhabitants, traces a direct line back to the early medieval period when it served as the country's principal political and religious capital. Helsingør, third on that list, owes its continued size to its historic role at the Øresund crossing. Næstved and Køge follow further down the island, and cities like Hillerød, Holbæk, Kalundborg, Ringsted, and Frederiksværk round out the network of towns that make Zealand one of the most densely settled islands in Northern Europe.
Zealand's name reaches beyond geography into geological time. The island lends its name to the Selandian, a stage of the Paleocene epoch, making it one of the rare places whose local identity is permanently embedded in the international scientific timescale.
Up Next
Common questions
What is the population of Zealand, Denmark?
Zealand had a population of 2,319,705 on the 1st of January 2020, making up approximately 40% of Denmark's total population. Copenhagen, located mostly on the island's eastern shore, held between 1.3 and 1.4 million of those residents in 2020.
How large is Zealand island in Denmark?
Zealand covers 7,031 square kilometres, making it the largest island in Denmark proper and the 13th-largest island in Europe by area. It is the 4th most populous island in Europe.
What does the name Zealand or Sjælland mean?
The exact origin of Sjælland is uncertain. The leading hypothesis links it to a reconstructed Old Norse word, *selha-, meaning either "seal" or "deep bay, fjord", combined with an ending meaning "resembles". Some scholars believe early sailors named the island after the Roskilde Fjord, a narrow inlet leading to the ancient settlement at Roskilde.
How is Zealand connected to the rest of Europe?
Zealand is linked to Funen and Jutland by the Great Belt Fixed Link, and to Sweden's Scania region via the island of Amager and the Øresund Bridge. In the south, the Storstrøm Bridge and Farø Bridges connect it to Falster and onward to Lolland. The Fehmarnbelt Tunnel, under construction at the time of writing, would extend this corridor to the German island of Fehmarn and mainland Europe.
What is the Norse myth about the creation of Zealand?
According to the Gylfaginning, the goddess Gefjun tricked Gylfi, the king of Sweden, into letting her take a piece of his land. She used her sons, transformed into oxen, to haul the territory to Denmark, where it became Zealand. The void left behind reportedly filled with water and became the Swedish lake Mälaren, though some identify lake Vänern as the better geographical match.
When was the first railway built on Zealand?
The first section of railway on Zealand opened in 1847 between Copenhagen and Roskilde. It was constructed by Det Sjællandske Jernbaneselskab, a company that operated from 1847 to 1888.
All sources
6 references cited across the entry
- 3ZealandBritannica — 2 October 2025
- 4Sjælland …Jan Katlev — Danish Language Museum — 4 August 2009