You’ll spot polar bears all over the Arctic, mostly on sea ice and along frigid coastlines in places like Canada, Alaska, Russia, Greenland, and Svalbard. These bears live and hunt out on the ice, and most of them stick to those five countries.
Imagine following a bear as it wanders across shifting ice, watching it use the frozen sea to hunt seals and travel for miles. Let’s dig into where polar bears actually live, how their habitat shapes their daily lives, and why sea ice is so crucial for their survival.
Where Are Polar Bears Found?
Polar bears stick to the Arctic sea ice and nearby coasts in a handful of northern countries. You’ll find them hunting seals on the ice or wandering cold shorelines, but most of the world’s polar bears actually live in just one country.
Countries and Regions With Polar Bears
You’ll find polar bears in five main places: Canada, the United States (Alaska), Russia, Greenland, and Norway (Svalbard). Canada has the biggest chunk of the world’s polar bears—probably around 60–80% of them.
In Alaska, these bears roam the northern and western coasts, especially by the Chukchi and Beaufort seas. Russia’s Arctic coast and islands also have several populations, including some that stick to remote islands and sea ice.
Greenland’s east and north coasts support bears that move between the ice and shore. Svalbard, which belongs to Norway, has a pretty famous polar bear population too. Sometimes you can even spot them from boats or the coastline.
Polar bears rely on sea ice, so where you’ll find them really depends on the season and the condition of the ice. Locals sometimes call them “nanook”—a reminder that people have shared the Arctic with these bears for ages.
Major Polar Bear Populations and Ranges
Scientists split polar bears into roughly 19 or 20 populations based on where they live and the sea-ice patterns. Some well-known groups include the Southern Beaufort, Chukchi Sea, Western Hudson Bay, and Barents Sea populations.
Each group uses different types of sea-ice habitat. For example, Western Hudson Bay bears spend summer on land near Churchill, Manitoba, while Barents Sea bears wander between Svalbard and northern Russia.
Population sizes and health aren’t the same everywhere. Some groups seem stable, but others are shrinking as sea ice disappears. Researchers use collars and surveys to track how far bears go, how they’re doing, and whether they’re having cubs.
If you’re curious, Polar Bears International has a good overview of where these bears live and how scientists map their ranges: (https://polarbearsinternational.org/polar-bears-changing-arctic/polar-bear-facts/habitat/).
Polar Bear Habitats and Adaptations
Let’s look at where polar bears actually live, how sea ice shapes their routines, and what helps them stay warm and fed in the Arctic.
Arctic Sea Ice and Marine Environment
Polar bears mostly stick to Arctic sea ice around Canada, Greenland, Svalbard (Norway), Russia, and Alaska. Sea ice is their highway and hunting ground. You’ll see them crossing big ice floes to reach seal breathing holes or coastal haul-outs.
Their fur looks white, but it’s actually clear and hollow. That helps trap heat. Underneath, their skin is black, which soaks up sunlight. Thick layers of fat keep them warm, even when they swim in icy water.
Mother bears dig maternity dens in snowdrifts on land or solid ice. There, they give birth and keep their cubs warm during those first tough months.
Sea ice also supports the seals that polar bears need to eat. When the ice melts or breaks up too early, bears have to travel farther or spend more time on land, where food is much harder to find.
Types of Sea Ice: Pack Ice, Polynyas, and Leads
Pack ice forms huge, shifting sheets that drift with the wind and currents. You’ll often spot polar bears along the edges of pack ice, since seals gather there. Where ice slabs crash together, pressure ridges form—bears use these as travel paths and as shelter from the wind.
Polynyas are open-water spots that stay ice-free or freeze over quickly. Seals love these areas for breathing and hauling out, so polynyas can be great places to watch bears hunt. Leads are narrow cracks or channels in the ice that open up during warmer weather or when tides shift. Bears swim through these leads or use them to reach prey at the ice edge.
The mix of pack ice, polynyas, leads, and pressure ridges makes the landscape constantly change. If you want to find polar bears, timing really matters, since these ice features shift with the seasons, winds, and tides.
Seal Hunting and Prey Relationships
Polar bears mostly eat ringed seals and bearded seals. Ringed seals use breathing holes in the ice and make dens under the snow. Bears wait by these holes or break into dens to grab pups. Bearded seals are bigger and usually stick near the coast or in shallow water—if a bear catches one, it gets a lot of fat in a single meal.
You’ll notice that bears rely on stealth and patience. Sometimes they crawl slowly to a seal hole, freeze in place, and then lunge when a seal pops up. When seals are hard to reach, bears will scavenge whale carcasses or grab bird eggs or small mammals. Cubs pick up hunting skills from their moms over months.
Seals need sea ice to rest and raise their pups. So, when the ice shrinks, bears have a harder time hunting. You might even see more bears wandering shorelines or getting close to human settlements when ice is scarce.
Threats to Polar Bear Habitats
Climate change keeps pushing temperatures higher, and that’s shrinking the seasonal sea ice. The hunting season for polar bears gets shorter every year.
When the ice breaks up sooner, bears lose out on weeks of prime hunting time. They can’t reach as many ringed and bearded seals, so a lot of them end up in worse shape, and fewer cubs survive.
You’ll hear scientists call polar bears a threatened species in some places because they’re losing so much habitat. Spending more time on land means bears run into people more often, which isn’t good for anyone.
Stable ice is disappearing, so it’s harder for bears to find safe spots for maternity dens. Even the seals are struggling since they rely on sea ice for pupping.
If we protect the Last Ice Area and set up marine zones, we can help save important habitat. Taking action to limit global warming might slow down sea-ice loss, and honestly, that gives us—well, everyone—a better shot at seeing healthy polar bears in the wild Arctic.
Links for more detail: polar bear habitat and sea ice facts are described by WWF in their Arctic overview (https://www.arcticwwf.org/wildlife/polar-bear/polar-bear-habitat/).
