Narwhals live in the Arctic, concentrated almost entirely in the North Atlantic region. Their core range spans the eastern Canadian Arctic and the coasts of Greenland, with smaller groups found around Svalbard and the Franz Josef Land archipelago in the European Arctic. Unlike many whale species that roam vast stretches of ocean, narwhals stick to a relatively narrow band of cold, ice-covered waters and follow predictable seasonal routes between summer and winter grounds.
Core Range: Canada and Greenland
The vast majority of the world’s narwhals live in Canadian and Greenlandic waters. Canada alone holds roughly 161,000 narwhals, which represents about 90% of the global population. Within Canada, two distinct groups dominate. The Baffin Bay population is by far the largest, estimated at around 141,900 animals. A smaller but stable group of about 19,200 narwhals inhabits the Northern Hudson Bay area.
A third population lives off East Greenland, though it is considerably smaller and less well surveyed. Beyond these Atlantic strongholds, narwhals occasionally appear in the waters around Svalbard, particularly in fjords along the northeastern coast and in the Hinlopen Strait. Sightings also occur near Franz Josef Land, a Russian archipelago deep in the Arctic Ocean.
Summer and Winter Habitats
Narwhals are not stationary. They move between two very different environments each year. In summer, they gather in shallow coastal fjords and inlets, particularly around Baffin Island, Somerset Island, and northwestern Greenland. The Hudson Bay population summers around Southampton Island. These sheltered, relatively ice-free waters serve as feeding and socializing grounds during the brief Arctic warm season.
When autumn arrives, typically between late September and early November, narwhals head south toward their winter habitat. Most Canadian narwhals spend winter in the heavy pack ice of the Davis Strait, the body of water between Baffin Island and Greenland. The Hudson Bay group winters near the mouth of the Hudson Strait. In spring, the whales reverse course and travel back north to their summer fjords.
Life in Dense Pack Ice
One of the most remarkable things about narwhals is where they choose to spend winter. From January through March, they live within dense pack ice where sea ice concentration exceeds 95%. This is an environment so extreme that most marine mammals avoid it entirely. Narwhals navigate through small cracks and leads in the ice to breathe, making them one of the few large animals adapted to such conditions.
They also prefer surprisingly deep water during winter. Satellite tracking studies show that narwhals actively select areas with ocean depths between 1,500 and 2,000 meters, avoiding shallower waters under 1,000 meters when possible. They regularly dive below 800 meters and occasionally plunge past 1,400 meters, likely to hunt deep-water prey like Greenland halibut and squid. This combination of heavy ice cover and deep, cold water defines the narwhal’s winter niche in a way that sets it apart from nearly every other cetacean.
How Climate Change Is Shifting Their Range
Warming temperatures are already changing narwhal behavior. A satellite tracking study spanning two decades, from 1997 to 2018, found that narwhals in Eclipse Sound (on the northern tip of Baffin Island) are staying in their summer grounds longer as sea ice forms later in the season. The rate of delay is roughly 10 days per decade, which closely mirrors the rate at which fall ice-up dates are retreating across Baffin Bay and the Canadian Archipelago.
In practical terms, this means narwhals that once began migrating south in early October may now linger into late October or even November. Years with lower Arctic sea ice minimums consistently corresponded with later departure dates. Narwhals appear to be keeping pace with the changing climate for now, adjusting their schedules rather than their destinations. But the long-term consequences are uncertain, especially because narwhals depend on dense pack ice in winter and could face increased competition or predation from species like orcas that are expanding into newly ice-free Arctic waters.
Protected Areas in Narwhal Habitat
Several marine protected areas in the Canadian Arctic overlap with critical narwhal habitat. Tallurutiup Imanga National Marine Conservation Area, at the northern end of Baffin Island, covers waters that narwhals use for foraging during summer. Farther north, the Tuvaijuittuq Marine Protected Area sits in a region sometimes called the “Last Ice Area,” where thick, multi-year sea ice is expected to persist longer than anywhere else in the Arctic. Together, about 15% of marine and coastal areas in the Canadian Arctic now have some form of provisional or full protection, providing narwhals with areas to feed and migrate without interference from shipping, oil exploration, or commercial fishing.
Outside Canada, protections are less formalized. Greenland permits limited subsistence hunting by Inuit communities, and the waters around Svalbard and Franz Josef Land have varying levels of environmental regulation. Because narwhals cross international boundaries during migration, their conservation ultimately depends on coordination between Canada, Greenland (Denmark), Norway, and Russia.