Narwhals live exclusively in the Arctic waters, primarily in the Atlantic sector of the Arctic Ocean. Their habitat spans the Arctic regions of Canada, Greenland, Norway, and Russia. They are notably found in areas such as Baffin Bay, Davis Strait, the Greenland Sea, and the Arctic Ocean between Svalbard and Franz Josef Land

. Narwhals spend their lives in these cold Arctic waters, often under sea ice during the winter months, particularly in the Baffin Bay-Davis Strait area where they can remain for up to five months. They migrate seasonally, moving to ice-free shallow coastal waters in the summer and returning to deeper waters under the ice in winter

. While most narwhals are found in the Atlantic Arctic, there have been only a few sightings on the Pacific side of the Arctic Ocean

. Their populations are divided into about 12 groups inhabiting these Arctic waters, and they tend to form pods ranging from small groups of 5-10 individuals to larger aggregations in summer

. In summary, narwhals live in the Arctic Ocean around Canada, Greenland, Norway, and Russia, migrating seasonally between ice-covered and ice-free waters within this region